Etymologie, Etimología, Étymologie, Etimologia, Etymology
US Vereinigte Staaten von Amerika, Estados Unidos de América, États-Unis d'Amérique, Stati Uniti d'America, United States of America
Zahlen, Número, Nombre, Numero, Number
Zahlentheorie, Teoría de números, Théorie des nombres, Teoria dei numeri, Number Theory
Algebraische Zahlentheorie, Teoría de números algebraicos, Théorie algébrique des nombres, Teoria algebrica dei numeri, Algebraic number theory

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artlebedev
A short history of telephone numbers

(E?)(L?) http://www.artlebedev.com/mandership/91/

Artemy Lebedev
§ 91. A short history of telephone numbers
June 18, 2002

The Scottish inventor Alexander Graham Bell is credited with speaking the first words by telephone on March 10, 1876: “Mr. Watson —Come here—I want to see you”. To call his assistant sitting next door, Bell didn’t have to dial a number: there were only two phone sets in the world at that time.
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How they did it

Americans who were to encounter the problem of 7-digit numbers sooner that any other nation, found a mnemonic solution to the problem (it was generally believed back then that 7-digit numbers were hard to memorize): the first three digits were replaced with letters some word started with. For technical reasons no telephone number in the US started with "1". For historical reasons "zero" was always used to call the operator. As a result, any American telephone number could start with any figure but "1" and "0".
...

Erstellt: 2011-12

att
Numbers

(E?)(L?) http://home.att.net/~wegast/symbols/numbers/numbers.htm
Some numbers have taken on specific meanings because of the way in which they are repeatedly used in scripture. It is wise, however, not to attach more meaning to biblical numbers than is permitted by the context of their use.

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infoplease
Engineering Calculator
Scientific Calculator
Deg, Rad, Bin, Oct, Dec, Hex

(E?)(L?) http://www.infoplease.com/math/calculator.html

internet
Number Pronunciator

(E6)(L1) http://javascript.internet.com/miscellaneous/number-pronunciator.html
Dieses Tool ist alleine schon interessant wegen der Benennungen hoher Zehnerpotenzen. Oder kennen sie die folgenden englischen Zahlenbezeichnungen:

'million', 'billion', 'trillion', 'quadrillion', 'quintillion', 'sextillion', 'septillion', 'octillion', 'nonillion', 'decillion', 'undecillion', 'duodecillion', 'tredecillion', 'quattuordecillion', 'quindecillion', 'sexdecillion', 'septendecillion', 'octodecillion', 'novemdecillion', 'vigintillion', 'unvigintillion', 'duovigintillion', 'trevigintillion', 'quattuorvigintillion', 'quinvigintillion', 'sexvigintillion', 'septenvigintillion', 'octovigintillion', 'novemvigintillion', 'trigintillion', 'untrigintillion', 'duotrigintillion', 'tretrigintillion', 'quattuortrigintillion', 'quintrigintillion', 'sextrigintillion', 'septentrigintillion', 'octotrigintillion', 'novemtrigintillion', 'quadragintillion', 'unquadragintillion', 'duoquadragintillion', 'trequadragintillion', 'quattuorquadragintillion', 'quinquadragintillion', 'sexquadragintillion', 'septenquadragintillion', 'octoquadragintillion', 'novemquadragintillion', 'quinquagintillion', 'unquinquagintillion', 'duoquinquagintillion', 'trequinquagintillion', 'quattuorquinquagintillion', 'quinquinquagintillion', 'sexquinquagintillion', 'septenquinquagintillion', 'octoquinquagintillion', 'novemquinquagintillion', 'sexagintillion', 'unsexagintillion', 'duosexagintillion', 'tresexagintillion', 'quattuorsexagintillion', 'quinsexagintillion', 'sexsexagintillion', 'septsexagintillion', 'octosexagintillion', 'novemsexagintillion', 'septuagintillion', 'unseptuagintillion', 'duoseptuagintillion', 'treseptuagintillion', 'quattuorseptuagintillion', 'quinseptuagintillion', 'sexseptuagintillion', 'septseptuagintillion', 'octoseptuagint', 'novemseptuagintillion', 'octogintillion', 'unoctogintillion', 'duooctogintillion', 'treoctogintillion', 'quattuoroctogintillion', 'quinoctogintillion', 'sexoctogintillion', 'septoctogintillion', 'octooctogintillion', 'novemoctogintillion', 'nonagintillion', 'unnonagintillion', 'duononagintillion', 'trenonagintillion', 'duattuornonagintillion', 'quinnonagintillion', 'sexnonagintillion', 'septnonagintillion', 'octononagintillion', 'novemnonagintillion', 'centillion', 'cenuntillion', 'duocentillion', 'centretillion'

Enter a number and this script will write it out in plain English. Your number can be up to 303 digits long.

Free JavaScripts provided
by The JavaScript Source

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mizian
Numerical Expressions & Weights and Measures

(E?)(L?) http://mizian.com.ne.kr/englishwiz/library/explore/numerical_expressions.htm

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number (W3)

(E?)(L?) http://www.wikipedia.org/wiki/number

numbergossip
Number Gossip

(E?)(L1) http://numbergossip.com/

Enter a number and I'll tell you everything you wanted to know about it but were afraid to ask.

(E?)(L1) http://numbergossip.com/list

Number Gossip Properties

| abundant | amicable | apocalyptic power | aspiring | automorphic | cake | Carmichael | Catalan | composite | compositorial | cube | deficient | even | evil | factorial | | Google | happy | hungry | lazy caterer | lucky | Mersenne | Mersenne prime | narcissistic | odd | odious | palindrome | palindromic prime | perfect | power of 2 | powerful | practical | prime | primorial | pronic | repunit | Smith | sociable | square | square-free | tetrahedral | triangular | twin | Ulam | undulating | untouchable | vampire | weird

Ein Beispiel: "60":

Unique Properties of 60

The smallest non-abelian simple group (the alternating group on 5 elements) has order 60, in particular 60 is the smallest composite which is the order of a simple group

60 is the smallest product of the sides of a Pythagorean triangle

Common Properties of 60

Abundant

Composite

Even

Evil

Practical

Erstellt: 2011-07

O

oeis
Online Encyclopedia of Integer Sequences - OEIS

(E?)(L?) http://www.oeis.org/
(E?)(L?) http://oeis.org/wiki/Welcome

Contents

1 Welcome to The On-Line Encyclopedia of Integer Sequences™ (OEIS™) Wiki

2 Some Famous Sequences

3 General Information About OEIS

4 Description of OEIS entries (or, What is the Next Term?)

5 OEIS: Brief History

6 OEIS: The Movie

7 Arrangement of Sequences in Database

8 Format Used in Replies From the Database

9 Index

10 Sequences Which Agree For a Long Time

11 Recent Additions

12 Compressed Versions

13 Contributing a New Sequence, Comment or More Terms

14 OEIS Search Bar

15 Email Addresses, Getting in Touch With Authors

16 Sequences in Classic Books

17 Citations

18 Referencing the OEIS

19 URLs

20 Referencing a Particular Sequence

21 Policy on Searching the Database

22 Acknowledgments

23 Related OEIS Pages

24 Links to Other Sites

25 OEIS Mentioned in WolframAlpha Timeline

26 Awards, Press Clippings

26.1 Thumbnails

27 Copyright Notice

(E?)(L?) http://oeis.org/wiki/Index_to_OEIS

Index to OEIS

(E?)(L?) http://oeis.org/wiki/Index_to_OEIS:_Section_Aa

a(a(n)) = 2n and similar sequences, sequences related to:

a(a(n)) = 2n and similar sequences: (1) A000027 A002516 A002517 A002518 A003605 A007378 A007379 A054786 A054787 A054788 A054789 A054790

a(a(n)) = 2n and similar sequences: (2) A079000 A079253 A079905 A080588 A080589 A080591 A080596 A080637

a(a(n)) = 2n and similar sequences: see also: (1) A000201 A001462 A007479 A038752 A038755 A038756 A038757 A054048 A054049 A054791 A054792 A054793

a(a(n)) = 2n and similar sequences: see also: (2) A065804

a(n+1)=a(n)^2 + ..., recurrences of the form :

a(n+1)=a(n)^2 + ..., recurrences of the form, (1) A000058 A000289 A000324 A001042 A001056 A001146 A013589 A001510 A001543 A001544 A001566

a(n+1)=a(n)^2 + ..., recurrences of the form, (2) A001696 A001697 A001699 A001999 A002065 A000215 A000283 A003010 A003095 A003096 A003423

a(n+1)=a(n)^2 + ..., recurrences of the form, (3) A003487 A004019 A005267 A007018 A014253 A028300 A051179 A056207 A058181 A058182 A062000

a(n+1)=a(n)^2 + ..., recurrences of the form, (4) A063573 A065035 A067686 A076725 A086851 A092500 A092501 A098152 A099729 A100523 A100528

a(n+1)=a(n)^2 + ..., recurrences of the form, (5) A110360 A110368 A110383 A113848 A114793 A114950 A117805 A118623 A125046 A126023 A135927

a(n+1)=a(n)^2 + ..., recurrences of the form, (6) A143760 A143761 A143762 A143763 A143764 A143765 A143766 A153059 A153060 A153061 A153062

a(n+1)=a(n)^2 + ..., recurrences of the form, (7) A172028 A174864 A186750

A(n, d), maximal size of binary code of length n and minimal distance d, sequences related to :

A(n,3), maximal size of binary code of length n and minimal distance 3: A005864*

A(n,4), maximal size of binary code of length n and minimal distance 4: A005864*

A(n,4,3): A001839

A(n,4,4): A001843

A(n,4,5): A169763

A(n,5), maximal size of binary code of length n and minimal distance 5: A005865*

A(n,6), maximal size of binary code of length n and minimal distance 6: A005865*

A(n,7), maximal size of binary code of length n and minimal distance 7: A005866*

A(n,8), maximal size of binary code of length n and minimal distance 8: A005866*

A(n,d,w) , maximal size of binary code of length n, constant weight w and minimal distance d, sequences related to :

A(n,d,w) sequences (1): A001839 A001843 A004035 A004036 A004037 A004038 A004039 A004043 A004047 A004052 A004056 A004067

A(n,d,w) sequences (2): A005851 A005852 A005853 A005854 A005855 A005856 A005857 A005858 A005859 A005860 A005861 A005862

A(n,d,w) sequences (3): A005863

a/b + b/c + c/a = n: A072716

A2 lattice, also known as hexagonal or triangular lattice, sequences related to :

A2 lattice, coordination sequence for: A008458*

A2 lattice, crystal ball sequence for: A003215*

A2 lattice, numbers represented by: A003136*

A2 lattice, polygons on: A036418*

A2 lattice, see also (1):: A005881, A003050, A003051, A006861, A006777, A006775, A003289, A006836, A003291, A006742, A006738, A006803, A005882, A006807

A2 lattice, see also (2):: A006984, A007239, A006778, A006739, A006776, A006813, A006809, A006735, A005550, A006740, A006736, A005552, A003488, A004016

A2 lattice, see also (3):: A002898, A003202, A003290, A002933, A002919, A002920, A001334, A006818, A007274, A007275, A005553, A005399, A006741, A006737

A2 lattice, see also (4):: A005400, A003197, A007207, A002911, A001335, A007200, A005549, A005551, A007201, A192208

A2 lattice, see also home page for

A2 lattice, sublattices of: A003051*, A003050*, A054384*

A2 lattice, theta series of: A004016*, A035019*

A2 lattice, theta series of: see also A005881, A005882, A014202

A2 lattice, walks on: A001334*

A3 lattice: see f.c.c. lattice

A3* lattice: see b.c.c. lattice

A4 lattice, sequences related to :

A4 lattice, coordination sequence for: A008383*

A4 lattice, crystal ball sequence for: A008384*

A4 lattice, theta sequence for: A008444*

(E?)(L?) http://oeis.org/wiki/Index_to_OEIS:_Section_Ab

abelian numbers: A051532

absolute primes: see primes, absolute

abundance: see abundancy

abundancy , sequences related to :

abundancy: A033880*, A033879, A005579, A005347, A005580, A033881, A033882

abundancy: see also deficiency

abundant numbers: A002093, A002182, A005101*, A091191

abundant numbers: consecutive: A094268

abundant numbers: odd: A005231*, A006038, A064001

abundant numbers: see also A004394

acetylene: A000642, A005957

Ackermann function, sequences related to :

Ackermann function: A001695, A046859, A014221

Ackermann function: see also sequences which grow too rapidly to have their own entries

acyclic digraphs, see digraphs, acyclic

add 1, multiply by 1, add 2, multiply by 2, etc., sequences related to :

add 1, multiply by 1, add 2, multiply by 2, etc.: A019463, A019460, A019462, A019461, A082448

add m then reverse digits, sequences related to :

add m then reverse digits: A007396, A003608, A007397, A007398, A007399

addition chains, sequences related to :

addition chains: A003064* A003065* A003313* A005766 A008057 A008928 A010787 A079300

additive bases , sequences related to :

additive bases: A004133, A004135, A004136

additive bases: see also Golomb rulers

additive sequences sequences related to :

additive sequences (00): definition: a(n*m) = a(n) + a(m) if GCD(n,m) = 1

additive sequences (01): completely additive A001222, A001414, A007814, A007949, A048675, A056239, A067666, A076649,

additive sequences (02): completely additive A078458, A078908, A078909, A112765, A113177

additive sequences (03): A001221, A005063-A005085, A005087-A005091, A005094, A008472, A008474,

additive sequences (04): A008475, A008476, A046660, A052331, A055631, A056169, A056170, A059841,

additive sequences (05): A064372, A064415, A066328, A079978, A080256, A081403, A087207, A090885,

additive sequences (06): A106490, A106492, A113178, A113222, A115357, A121262, A086275

additive sequences (07): completely additive fractions: A083345/A083346

additive sequences (08): additive fractions: A028235/A007947, A028236/A000027

additive sequences (09): totally additive: see additive sequences, completely additive

additive sequences (10): strongly additive: see additive sequences, completely additive

Aho-Sloane paper: see entry for a(n+1)=a(n)^2 + ...

Airey's converging factor: A001662

Aitken's array: A011971*

(E?)(L?) http://oeis.org/wiki/Index_to_OEIS:_Section_Al

alcohols, sequences related to :

alcohols: A000598 A000599 A000600 A002094 A005955 A005956

Alcuin's sequence: A005044*

Alekseyev's problem: see doubling substrings

algebras , sequences related to :

algebras, Jordan: A001776

algebras: (1) A000929 A001330 A001331 A006448 A007154 A007156 A007157 A007158 A007159 A014610 A046001 A052249

algebras: (2) A052250 A052253

algebras; see also Clifford group

algebras; see also Lie algebras

algebras; see also vertex operator algebras

algorithms, sequences related to :

algorithms: A005825 A005826 A005827 A006457 A006458 A006459 A006929 A030547 A032426 A049476 A055633

algorithms: see also Euclidean algorithm

aliquot divisors, see aliquot parts

aliquot parts (or aliquot divisors): A032741*, A001065* (sum of)

aliquot parts, sequences related to :

aliquot sequence (or trajectory) for n, length of: A098007*, A098008*, A003023, A044050*, A007906, A003062

aliquot trajectories for certain initial values: (1) A008885 A008886 A008887 A008888 A008889 A008890 A008891 A008892 A014360 A014361 A074907 A014362

aliquot trajectories for certain initial values: (2) A045477 A014363 A014364 A014365 A074906

alkanes: A000602*

alkyls, sequences related to :

alkyls: A000598 A000639 A000642 A000645 A000646 A000647 A000648 A000649 A000650 A005957 A010372 A022014 A036996

all-0's sequence, sequences related to :

all-0's sequence: A000004*

all-1's sequence: A000012*

all-2's sequence: A007395*

all-3's sequence: A010701*

all-4's sequence: A010709*

all-5's sequence: A010716*

all-6's sequence: A010722*

all-7's sequence: A010727*

all-8's sequence: A010731*

all-9's sequence: A010734*

almost primes, sequences related to :

almost primes: (0) a k-almost prime has k prime factors, counted with multiplicity

almost primes: (1) A001358, A014612, A014613, A014614, A046306, A046308, A046310, A046312, A046314, A069272, A069273, A069274

almost primes: (2) A069275, A069276, A069277, A069278, A069279, A069280, A069281; table A078840

almost primes: gaps, by increasing Omega: A065516, A114403, A114404, A114405, A114406, A114407, A114408

almost-natural numbers, sequences related to :

almost-natural numbers: A007376*

almost-natural numbers: for decimations see A127050 A127353 A127414 A127508 A127584 A127734 A127794 A127950 A128178 A128211 A128359 A128423 A128475 A128881

alphabetical order, sequences related to :

alphabetical order, numbers in: A000052*

alphabetical order, numbers in: see also A001058, A001061, A001062, A003588

alternating bit sets: A002487

alternating bit sum: A065359

alternating group A_n, sequences related to :

alternating group A_n, A001710*

alternating group A_n, degrees of irreducible representations of, for n = 5 through 13: A003860, A003861, A003862, A003863, A003864, A003865, A003866, A003867, A003868

alternating permutations: see permutations, alternating

alternating sign matrices: see matrices, alternating sign

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Am

amicable numbers, sequences related to :

amicable numbers: A063990*, A063991 (unitary)

amicable pairs, augmented: A007992*, A015630*

amicable pairs, unitary: A002952*, A002953*

amicable pairs: A002025*, A002046*

ammonium: A000633

AND(x,y), sequences related to :

AND(x,y): A004198*

AND: see also: A003985 A005756 A006581 A007461 A033458 A046951 A050600 A050601 A050602 A051122 A053623

Andrews-Mills-Robbins-Rumsey numbers: A005130

animals , sequences related to :

animals, square: A000105

animals: (1) A001931 A005773 A005774 A005775 A006193 A006194 A006801 A006861 A007193 A007194 A007195 A007196

animals: (2) A007197 A007198 A007199 A010374 A011789 A011790 A011791 A011792 A033565 A036908 A038151 A038168

animals: (3) A038169 A038170 A038171 A038172 A038173 A038174 A038180 A038181 A038386 A039700 A039740 A039741

animals: (4) A039742 A053022 A055898 A055907 A055919

animals: see also polyominoes

anti-divisor: A066272* (for definition), A130799 (initial values)

antichains, sequences related to :

antichains: A000372*, A007363*

antichains: see also (1) A003182 A006360 A006361 A006362 A007153 A007852 A007853 A014466 A032263 A051303 A051304 A051305

antichains: see also (2) A051306 A051307 A056932 A056933 A056934 A056935 A056936 A056937 A056939 A056940 A056941

antidiagonals, sequences related to :

antidiagonals, definition by example: A003987, A060736, A060734

antidivisor: A066272* (for definition), A130799 (initial values)

antimagic squares: A050257

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ap

AP's of primes, see primes, in arithmetic progressions

Apery numbers, sequences related to :

Apery numbers: A002736*, A005258*, A005259*, A005429*, A005430*

Apery numbers: see also A006353, A006354

Apery's number zeta(3): A002117*, A013631*; see also A033165, A033166, A033167

Apocalyptic powers: A007356

Apollonian ball packings, sequences related to :

Apollonian ball packings: A045506

Apollonian circle packings: A042944, A042945, A042946, A045673, A045864, A045963

approximate squaring: see under x*ceiling(x), iterating and x*floor(x), iterating

ApSimon mints problem: A007673

Ap\'{e}ry numbers: see Apery numbers

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ar

arborescences: A003120

arccos(x) and other inverse trig functions, sequences related to :

arccos(x): see Pi/2-arcsin(x), A055786 / A002595

arccosec(x): see arcsin(1/x), A055786 / A002595

arccosech(x): see arcsinh(1/x), A055786 / A002595

arccosh(x): A052468/A052469

arccotangent reducible numbers: A002312

arcos and arccos are both used in the OEIS!

arcosh and arccosh are both used in the OEIS!

arcsec(x): see Pi/2-arcsin(1/x), A055786 / A002595

arcsech(x): see arccosh(1/x), A052468 / A052469

arcsin(x): A055786/A002595, A006228

arcsinh(x): A055786/A002595

arctangent numbers, triangle of: A008309*

areas: A005386

ARIBAS: A062916

arithmetic mean of 1st n terms is an integer ( 1): A000012 A000326 A001564 A001792 A004767 A005408 A005449 A005843 A016813 A019444 A049450 A057711

arithmetic mean of 1st n terms is an integer ( 2): A076540 A081038 A090942 A092930 A092929 A094588 A104249 A136391 A138879 A157142 A171769

arithmetic mean of 1st n terms is an integer ( 3): A000255 A002104 A099035 A094258

arithmetic means: A007340

arithmetic numbers: A003601*, A090944

arithmetic progressions of primes, see primes, in arithmetic progressions

arithmetic progressions with fixed prime signature, see primes, in arithmetic progressions

arithmetic progressions: A003407, A005115, A005836, A005837, A005838, A005839

Armstrong numbers, sequences related to :

Armstrong numbers: A005188*

Armstrong numbers: in other bases: A010343, A010344, A010345, A010346, A010347, A010348, A010349, A010350, A010351, A010352, A010353, A010354

Armstrong numbers: see also A014576

Aronson's sequence, sequences related to :

Aronson's sequence, generalized: A079000

Aronson's sequence, generalized: see also sequences of the a(a(n)) = 2n family

Aronson's sequence, numerical analogues of: ( 1) A000201 A003151 A003605 A004956 A005224 A007378 A010906 A014132 A026351 A045412 A061891 A064437

Aronson's sequence, numerical analogues of: ( 2) A073074 A079000* A079250 A079251 A079252 A079253 A079254 A079255 A079256 A079257 A079258 A079259

Aronson's sequence, numerical analogues of: ( 3) A079313 A079325 A079351 A079358 A079905 A079946 A079948 A080029 A080030 A080031 A080032 A080033

Aronson's sequence, numerical analogues of: ( 4) A080034 A080036 A080037 A080081 A080199 A080353 A080455 A080456 A080457 A080458 A080460 A080574

Aronson's sequence, numerical analogues of: ( 5) A080578 A080579 A080580 A080588 A080589 A080590 A080591 A080600 A080633 A080637 A080639 A080640

Aronson's sequence, numerical analogues of: ( 6) A080641 A080644 A080645 A080646 A080652 A080653 A080667 A080707 A080708 A080710 A080711 A080712

Aronson's sequence, numerical analogues of: ( 7) A080714 A080720 A080722 A080723 A080724 A080725 A080726 A080727 A080728 A080731 A080745 A080746

Aronson's sequence, numerical analogues of: ( 8) A080752 A080753 A080754 A080759 A080760 A080780 A080900 A080901 A080903 A080904 A080939 A080949

Aronson's sequence, numerical analogues of: ( 9) A081023 A081024 A081260 A081746 A091387 A091388 A091389 A091390 A091391

Aronson's sequence: A005224*, A080520 (French version)

arrays , sequences used for indexing, sequences related to :

arrays, indexing: A073189*

arrays, sequences used for indexing: (1) A000194 A002024 A002260 A002262 A003056 A003057 A003059 A004736 A025581 A048760 A053186 A055086

arrays, sequences used for indexing: (2) A055087 A071797 A073188 A073189*

arrays: A003169, A007073, A007074, A007072

artiads: A001583*

Artin's conjecture or constant, sequences related to :

Artin's conjecture : A001122

Artin's conjecture, Artin's constants: A005596* A048296* A065414 A065417 A066517

Artin's conjecture: see also primes by primitive root

ascent sequences: Total number of ascent sequences is given by A022493*. Number of ascent sequences avoiding 001 (and others) is A000079; avoiding 102 (and others) is A007051; 101 is A000108; 000 is A202058; 100 is A202059; 110 is A202060; 120 is A202061; 201 is A202062; 210 is A108304; 0123 is A080937; 0021 is A007317.

association schemes, sequences related to :

association schemes: A057495*, A057498 (noncommutative), A057499 (primitive)

asubb: see A121295, A121296, A121297, A121623 and other dungeon sequences, also A122618

asymmetric channel, codes for: A010101

asymmetric sequences: A002842

asymptotic expansions, sequences related to :

asymptotic expansions: A001163 A001164 A002073 A002074 A002304 A002305 A002514 A006572 A006953

atomic species: A005226, A005227, A007650

atomic weights: A007656*

audioactive decay: see "say what you see"

autobiographical numbers: A046043, A138480, A104784, but see also self-describing numbers

automata, see cellular automata

automorphic numbers , sequences related to :

automorphic numbers: (1) A003226 A007185 A016090 A018247 A018248 A033819 A074194 A074250 A074321 A074330 A074332

automorphic numbers: (2) A030984 A030985 A030986 A030987 A030988 A030989 A030990 A030991 A030992 A030993 A030994

automorphic numbers: (3) A030995 A035383 A046883 A046884 A082576

automorphic numbers: see also A045537, A075154

A_2 lattice: see A2 lattice

A_3 lattice: see f.c.c. lattice

A_4 lattice: see A4 lattice

a_b: see A121295, A121296, A121297, A121623, A122618

a_b: see also dungeons

A_n lattice: coordination sequence for: see A005901

A_n sequence, primes in: A111157

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ba

B-trees, sequences related to :

B-trees: A014535*, A037026, A058521, A058518, A058519, A058520

b.c.c. lattice , sequences related to :

b.c.c. lattice, animals on: A007195 A007196 A007197 A038170 A038171 A038180 A038181 A038386

b.c.c. lattice, coordination sequence for: A005897*

b.c.c. lattice, partition function: A001406

b.c.c. lattice, polygons on: A001667

b.c.c. lattice, see also home page for

b.c.c. lattice, series expansions for: (1) A002167 A002168 A002914 A002917 A002925 A003194 A003206 A003210 A003492 A003497 A007218 A006805

b.c.c. lattice, series expansions for: (2) A006811 A006838 A007218 A010559 A010560 A010564 A047711

b.c.c. lattice, theta series of: A004013* A004014* A004024 A004025 A005869 A008664 A008665

b.c.c. lattice, walks on: A001666, A001667, A002903

Baby Monster simple group: A001378*

backgammon: A055100

Baker-Campbell-Hausdorff expansion: A005489

balanced numbers: A020492

Balancing weights: A002838

ballot numbers , sequences related to :

ballot numbers: A003121*

ballot numbers: see also A002026, A006123, A007054, A007272, A034928, A034929

balls into boxes, sequences related to :

balls into boxes: (1) A000110 A001700 A001861 A005337 A005338 A005339 A005340 A007318 A019575 A019576 A019577 A019578

balls into boxes: (2) A019579 A019580 A019581 A027710

balls on the lawn: see tennis ball problem

Barker sequences (or Barker codes): A011758, A011759, A091704

Barnes-Wall lattices, sequences related to :

Barnes-Wall lattices, groups of: A014115*, A014116*

Barnes-Wall lattices, in 2^2 dim., theta series of: A004011

Barnes-Wall lattices, in 2^3 dim., theta series of: A004009

Barnes-Wall lattices, in 2^4 dim., theta series of: A008409

Barnes-Wall lattices, in 2^5 dim., theta series of: A004670

Barnes-Wall lattices, in 2^6 dim., theta series of: A103936

Barnes-Wall lattices, in 2^7 dim., theta series of: A100004

Barnes-Wall lattices, kissing numbers of: A006088*

Barnes-Wall lattices, odd: A014711*

Barnes-Wall lattices, see also A035596

Barnes-Wall lattices, vectors of twice minimum: A110972, A110973

Barnes-Wall lattices: see also Clifford groups

barriers for omega(n): A005236

barycentric subdivisions: A002050, A005461, A005462, A005463, A005464

base -2: A039724*, A005351*, A005352

base, factorial, A007623

base, fractional , sequences related to :

base, fractional, definition: A024661*

base, fractional: defined in A024630

baseball: see Ruth-Aaron numbers, Maris-McGwire numbers

Batcher parallel sort: A006282

Baxter permutations: A001181*, A001183*, A001185*

bcc lattice: see b.c.c. lattice

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Be

Beans-Don't-Talk: A005694, A005695, A005696, A005697, A005698

Beanstalk: A005692, A005693

beastly numbers: A051003, A046720, A131645, A186086, A138563

Beatty sequences sequences related to :

Beatty sequences : for a constant c, the two Beatty sequences are the main sequence floor(n*c) and the complementary sequence floor(n*c') where c' = c/(c-1))

Beatty sequences for: (n+1/2)/2 (A038707), (n+1/2)/4 (A038709), Feigenbaum's constant (A038123), Brun's constant (A038124)

Beatty sequences for: (sqrt(5)+5)/2 (A003231), (1 + sqrt 3)/2 (A003511), sqrt 3 + 2 (A003512), (3+Sqrt[3])/2 (A054406)

Beatty sequences for: 1+1/Pi (A059531), 1+Pi (A059532), 1+Catalan's constant (A059533), 1+1/Catalan's constant (A059534)

Beatty sequences for: 1+gamma A001620 (A059555), 1+1/gamma (A059556), 1+gamma^2, (A059557), 1+1/gamma^2 (A059558), 1-ln(1/gamma), (A059559), 1-1/ln(1/gamma) (A059560)

Beatty sequences for: 3/4, 2/5, 3/5, 2/7, 3/7, 4/7, 5/7, 3/8, 5/8, 5/13, 8/13, 8/21, 13/21, 7/19, 11/30 (A057353-A057367)

Beatty sequences for: 3^(1/3) (A059539), 3^(1/3)/(3^(1/3)-1) (A059540), 1+ln(2) (A059541), 1+1/ln(2) (A059542), ln(3) (A059543), ln(3)/(ln(3)-1) (A059544)

Beatty sequences for: e (A022843), e/(e-1) (A054385), 1/(e-2) (A000062), 1/e (A032634), e-1 (A000210), e+1 (A000572), (e+1)/e (A006594), e^(1/e) (A037087)

Beatty sequences for: e^gamma (A059565), e^gamma/(e^gamma-1) (A059566), 1-ln(ln(2)) (A059567), 1-1/ln(ln(2)) (A059568)

Beatty sequences for: e^pi (A038152), pi^e (A038153), 2^sqrt(2) (A038127), Euler's gamma (A038128), 2^(1/3) (A038129)

Beatty sequences for: Gamma(1/3) (A059551), Gamma(1/3)/(Gamma(1/3)-1) (A059552), Gamma(2/3) (A059553), Gamma(2/3)/(Gamma(2/3)-1) (A059554)

Beatty sequences for: ln(10) (A059545), ln(10)/(ln(10)-1) (A059546), 1+1/ln(3) (A059547), 1+ln(3) (A059548), 1+1/ln(10) (A059549), 1+ln(10) (A059550)

Beatty sequences for: ln(Pi) (A059561), ln(Pi)/(ln(Pi)-1) (A059562), e+1/e (A059563), (e^2+1)/(e^2-e+1) (A059564)

Beatty sequences for: Pi (A022844), Pi/(Pi-1) (A054386), 1/Pi (A032615), pi^2 (A037085), sqrt(pi) (A037086), 2*pi (A038130), sqrt(2 pi) (A038126)

Beatty sequences for: Pi^2/6, or zeta(2) (A059535), zeta(2)/(zeta(2)-1) (A059536), zeta(3) (A059537), zeta(3)/(zeta(3)-1) (A059538)

Beatty sequences for: sqrt(2) (A001951), 2 + sqrt(2) (A001952), 1 + 1/sqrt(11) (A001955), 1 + sqrt(11) (A001956)

Beatty sequences for: sqrt(3) (A022838), sqrt(5) (A022839), sqrt(6) (A022840), sqrt(7) (A022841), sqrt(8) (A022842)

Beatty sequences for: sqrt(5) - 1 (A001961), sqrt(5) + 3 (A001962), 1+sqrt(2) (A003151), 1/(2-sqrt(2)) (A003152)

Beatty sequences for: tau (A000201), tau^2 (A001950), tau^3 (A004976), tau^(4+n) (n=0..16) (A004919+n)

Beatty sequences: references about: see especially A000201

Beatty sequences: see also (1) A014245 A014246 A022803 A022804 A022805 A022806 A022879 A022880 A023541 A023542 A045671 A045672

Beatty sequences: see also (2) A045681 A045682 A045749 A045750 A045774 A045775

Beethoven: A001491, A054245, A123456

Beethoven: see also music

beginning with t: A006092, A005224

Belgian numbers: A106039, A106439, A106518, A106596, A106631, A106792, A107014, A107018, A107032, A107043, A107062, A107070.

Bell numbers, sequences related to :

Bell numbers: A000110*

Bell numbers: see also A007311

Bell numbers: see also set partitions

Bell numbers: see also Stirling numbers of 2nd kind

bell ringing , sequences related to

bell ringing: (1) A090277 A090278 A090279 A090280 A090281 A090282 A090283 A090284

bell ringing: (2) A057112 A060112 A060135

Bell's formula: A002575, A002576

bemirps: A048895

bending: see folding

Benford numbers: A004002*

Benny, Jack: A056064

bent functions: A004491, A099090

benzene: A000639

Berlekamp's switching game: A005311*

Bernoulli numbers , sequences related to :

Bernoulli numbers B_n: A027641**/A027642*. A027641 has all the references, links and formulae

Bernoulli numbers B_{2n}: A000367*/A002445*, but see especially A027641

Bernoulli numbers (n+1)B_n: A050925/A050932, A002427/A006955

Bernoulli numbers, generalized: A006568, A006569, A002678, A002679

Bernoulli numbers, higher order: A001904, A001905

Bernoulli numbers, irregularity index of primes: A061576, A091888, A007703, A000928, A091887, A073276, A073277, A060975

Bernoulli numbers, numerators and their factorizations: (1) A000367 = numerators, A000928 = irregular primes, A001067 A001896 A002427 A002431 A002443 A002657 A007703 A017329 A027641 A027643

Bernoulli numbers, numerators and their factorizations: (2) A027645 A027647 A029762 A029764 A033470 A033474 A035078 A035112 A043295 A043303 A046988 A050925

Bernoulli numbers, numerators and their factorizations: (3) A053382 A060054 A067778 A068206 A068399 A068528 A069040 A069044 A070192 A070193 A071020 A071772

Bernoulli numbers, numerators and their factorizations: (4) A073276 A075178 A076547 A076549 A079294 = number of prime factors, A083687 A084217 A085092 A085737 A089170 A089644 A089655

Bernoulli numbers, numerators and their factorizations: (5) A090177 A090179 A090495 A090496 A090629 A090789 A090790 A090791 A090793 A090798 A090800 A090817

Bernoulli numbers, numerators and their factorizations: (6) A090818 A090823 A090825 A090865 A090943 = squareful numerators, A090947 = largest prime factor, A091216 A091888 A092132 A092133 A092194 A092195

Bernoulli numbers, numerators and their factorizations: (7) A092221 A092222 A092223 A092224 A092225 A092226 A092227 A092228 A092229 A092230 A092231 A092291

Bernoulli numbers, numerators and their factorizations: (8) A090997 A090987

Bernoulli numbers, poly-Bernouli numbers: A027643 A027644 A027645 A027646 A027647 A027648 A027649 A027650 A027651

Bernoulli numbers, see also (1): A000146 A000182 A000928 A001469 A001896 A001947 A002105 A002208 A002316 A002431 A002443 A002444

Bernoulli numbers, see also (2): A002657 A002790 A002882 A003245 A003264 A003272 A003326 A003414 A003457 A004193 A006863 A006953

Bernoulli numbers, see also (3): A006954 A014509 A020527 A020528 A020529 A029762 A029763 A029764 A029765 A030076 A033469 A033470

Bernoulli numbers, see also (4): A033471 A033473 A033474 A033475 A035077 A035078 A035112 A045979 A046094 A046968 A047680 A047681

Bernoulli numbers, see also (5): A047682 A047683 A047872 A051222 A051225 A051226 A051227 A051228 A051229 A051230

Bernoulli numbers, see also (6): A027762

Bernoulli numbers, triangles that generate: A051714/A051715, A085737/A085738

Bernoulli polynomials, sequences related to :

Bernoulli polynomials, coefficients of: A053382*/A053383*, A048998*, A048999*

Bernoulli polynomials, see also A001898 A002558 A020527 A020528 A020529 A020543 A020544 A020545 A020546

Bernoulli twin numbers: A051716/A051717

Bernstein squares: A097871

Berstel sequence: A007420*

Bertrand's Postulate, sequences related to :

Bertrand's Postulate: A035250*, A036378, A006992, A051501

Bessel function or Bessel polynomial , sequences related to :

Bessel function or Bessel polynomial: (1) A000134 A000155 A000167 A000175 A000249 A000275 A000331 A001880

Bessel function or Bessel polynomial: (2) A001881 A002190 A002506 A006040 A006041 A014401 A039699 A046960 A046961 A046962 A046963

Bessel function or Bessel polynomial: (3) A051148 A051149

Bessel functions: J_0: A002454, J_1: A002474, J_2: A002506, J_3: A014401, J_4: A061403, J_5: A061404, J_6: A061405, J_7: A061407, J_9: A061440 J_10: A061441

Bessel numbers: A006789, A111924, A100861

Bessel polynomial, coefficients of: A001497, A001498

Bessel polynomial, defined: A001515, A001497, A001498

Bessel polynomial, values of: (1) A001515, A001517, A001518, A065919, A001514, A065920, A065921, A065922, A006199, A065707, A000806, A002119

Bessel polynomial, values of: (2) A065923, A001516, A065944, A065945, A065946, A065947, A065948, A065949, A065950, A065951

Bessel triangle: A001497*, A000369, A001498, A011801, A013988, A004747, A049403, A065931, A065943

betrothed numbers: A003502*, A003503*, A005276*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Bi

bicoverings: A002718, A002719

bigomega(n), number of primes dividing n (counted with repetition): A001222

binary codes, maximal size of constant weight, see A(n,d,w)

binary codes, maximal size of, see A(n, d)

binary codes: see codes, binary

binary digits: see binary expansion

binary entropy: A003314

binary expansion of n , sequences related to :

binary expansion of n: A000120* (weight), A000788*, A000069*, A001969*, A023416*, A059015*, A007088*, A070939*

binary expansion of n: produces a prime: A036952, A065720, A156059

binary expansion of n: see also (1) A005536, A003159, A006995, A006364, A054868, A070940, A070941, A070943, A001511, A029837, A037800

binary expansion of n: see also (2) A014081, A014082

binary matrices: see matrices, binary

binary numbers: A007088*

binary order of n: A029837, A070939

binary partitions: see partitions, binary

binary quadratic forms: see quadratic forms, binary

Binary sequences:: A006840

binary strings, A007088*, A007931

binary strings, see also: A007039, A007040, A005598

binary vectors, A007088*, A007931

binary vectors, avoiding certain patterns: A000045, A006156, A006498, A040000, A062257, A062258, A062259, A121907, A079500, A164387, A188580, A188696, A188697, A188714, A188765

binary vectors, grandchildren of: A057606, A057607, A000124

Binary vectors:: A005253, A003440

binary weight of n, sequences related to :

binary weight of n: A000120*

binary weight of n: see also weight of n

binomial coefficient, sequences related to :

binomial coefficients, A000012* = binomial(n,0), A000027* = binomial(n,1), A000217* = binomial(n,2), A000292* = binomial(n,3), etc.

binomial coefficients, central: A000984*, A001405*, A001700

Binomial coefficients, LCM of:: A002944

Binomial coefficients, occurrences of n as:: A003016

binomial coefficients, triangle of: A007318*

binomial coefficients: (1):: A005733, A005735, A005809, A001791, A005810, A000332, A002054, A000389, A002694, A003516

binomial coefficients: (2):: A000580, A002696, A000581, A000582, A001287, A001288

binomial coefficients: see also Gaussian binomial coefficients

binomial coefficients: sums:: A001527, A003161, A003162

Binomial moments:: A000910

binomial transform, sequences related to :

binomial transform: see Transforms file

binomial transforms:: A007442, A000371, A007476, A007443, A007317, A005331, A007405, A007472, A004211, A005572, A005494, A004212, A005021, A004213, A005011, A005327, A005014

binomial(n,2): A000217*

binomial(n,3): A000292*

binomial(n,4): A000332*

binomial(n,k): binomial coefficient n-choose-k (see A007318)

bipartite (1):: A007083, A007029, A000291, A006823, A006612, A002774, A007085, A005142, A000412, A004100

bipartite (2):: A001832, A005335, A005336, A007084, A002762, A002766, A002763, A006824, A006825, A007028

bipartite (3):: A002767, A000465, A002768, A002764, A000491, A002765, A002755, A002756, A002757, A002758, A002759

bipartite , sequences related to :

bipartite graphs: see also graphs, bipartite

biprimes: A001358

birthday paradox: A014088 A033810 A050255 A050256 A051008 A064619

bisections, sequences related to :

bisections: A001519, A002478, A001906, A002878, A002287, A002286

bisections: see also dissections

Bishops problem, sequences related to :

Bishops problem:: A005633, A005631, A005635, A002465*, A005634, A005632

bits: see binary expansion

bitwise exclusive OR, see under XOR

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Bl

blobs: A003168 A007161 A007166 A048173

blocks: see graphs, nonseparable

blocks: see also LEGO blocks

blocks: see also under partitions

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Bo

Board of Directors Problem: A005254, A037354

Bode's law: A003461*, A061654

body-centered cubic lattice: see b.c.c. lattice

Bohr radius: A003671*

Bokmal: A014656

Bokmal: see also Index entries for sequences related to number of letters in n

bond percolation, sequences related to :

bond percolation:: A006727, A006728, A006730, A006738, A006729, A006735, A006736, A006737

Boolean functions, sequences related to :

Boolean functions, balanced: A000721

Boolean functions, cascade-realizable: A005608, A005609, A005610, A005611, A005613, A005619, A005749

Boolean functions, Dedekind's problem: see Boolean functions, monotone (Dedekind's problem)

Boolean functions, fanout-free: A005737, A005736, A005742, A005738, A005740, A005612, A005615, A005617, A005743, A005741

Boolean functions, inequivalent, under action of various groups (1): A000133, A000214, A000231, A000585, A000614, A001289, A003180, A008842, A011782, A028401, A028402, A028403

Boolean functions, inequivalent, under action of various groups (2): A028404, A028405, A028406, A028407, A028409, A028410, A028411, A049461, A051460, A051502, A053040, A057132

Boolean functions, invertible: A001038, A000656, A000653, A000722, A000654, A000725, A000724, A000723, A001537, A000652, A128904

Boolean functions, irreducible: A000616*

Boolean functions, Knuth's tables. D. E. Knuth, The Art of Computer Programming, Vol. 4A, Section 7.1.1, p. 79, has three useful lists of Boolean functions, which are as follows. Table 3: A001146, A001146, A000372, A001206, A102897, A109457, A000609, A000079, A102449. Table 4: A003180, A057132, A003182, A008840, A193675, A109458, A109455, A109460. Table 5: A000370, A001531, A001529, A001532, A000616.

Boolean functions, minimal numbers of elements needed to realize any: A056287*, A057241*, A058759*

Boolean functions, monotone (Dedekind's problem): A000372*, A003182*, A007153*, A001206*, A014466*

Boolean functions, monotone (Dedekind's problem): see also Dedekind's problem

Boolean functions, monotone (Dedekind's problem): see also A016269, A047707, A051112, A051113, A051114, A051115, A051116, A051117, A051118

Boolean functions, nondegenerate: A000371*, A000618, A003181, A001528

Boolean functions, see also (1): A000157, A000370, A000612, A000613, A001087, A005530, A005581, A005744, A005756, A018926, A036240, A037267

Boolean functions, see also (2): A037843, A051185, A051355, A051360, A051361, A051368, A051375, A051376, A051381, A056778

Boolean functions, see also canalizing functions

Boolean functions, see also switching networks

Boolean functions, see also threshold functions

Boolean functions, self-complementary: A000610*, A001320*, A053037

Boolean functions, self-dual monotone: A001206*

Boolean functions, self-dual: A001531*, A006688*, A002080, A008840, A008841

Boolean functions, triangle of numbers of: A039754, A051486*, A053874*, A052265*, A054724*, A022619*, A059090

Boolean functions, unate: A003183

Boolean lattices: A005493

Boolean polynomials: see polynomials, Boolean

Boolian: the correct spelling is Boolean

boson strings, sequences related to :

boson strings: A005290 A005291 A005292 A005293 A005294 A005307 A005308

Boubaker polynomials: A135929, A138034, A160242, A162180

bouquets: A005431

boustrophedon transform, sequences related to :

boustrophedon transform, definition see Millar-Sloane-Young paper

boustrophedon transform, in Maple, see Transforms file

boustrophedon transform, of various sequences: (0) A000111*, A000182*, A000364*, A000667*

boustrophedon transform, of various sequences: (1) A000660 A000674 A000687 A000697 A000718 A000732 A000733 A000734 A000736 A000737 A000738

boustrophedon transform, of various sequences: (2) A000744 A000745 A000746 A000747 A000751 A000752 A000753 A000754 A000756 A000764 A029885

boustrophedon transform, variations on: (1) A059216, A058217, A059219, A059220, A059502, A059503, A059505, A059506, A059507, A059508, A059509, A059226

boustrophedon transform, variations on: (2) A059227, A059228, A059229, A059234, A059235, A058237

boustrophedon transform, variations on: (3) A059510 - A059512, A027994

boustrophedon transform: see also A000661

bowling: A060853

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Br

bracelets , sequences related to :

bracelets , A000029*, A005232, A005513-A005516, A007123, A032279-A032288, A073020, A078925

bracelets, 3-colored, A005654, A005656, A027671*, A032240, A032294

bracelets, 4-colored, A032241, A032275*, A032295

bracelets, 5-colored, A032242, A032276*, A032296

bracelets, aperiodic, A001371*, A032294-A032296, A045628, A045633

bracelets, asymmetric, A032239*, A032240-A032242

bracelets, balanced, A005648*, A006079, A006840, A045628, A045633

bracelets, complements are equivalent, A000011*, A006080, A006840, A045633, A053656, A066313-A066316

bracelets, identity, see bracelets, asymmetric

bracelets, triangle, A052307*, A052308, A052309, A052310

bracelets: see also Lyndon words

bracelets: see also necklaces

bracelets: see also A005595, A007148, A027670, A054499

bracket function: A000748, A000749, A000750, A001659 , A006090

brackets, ways to arrange: see parentheses, ways to arrange

braids, sequences related to :

braids: A054761*, A000071, A054480, A007988, A007990, A007991, A007993, A007994, A007995

Braille: A079399, A072283

Bravais lattices: A004030*

Brazilian Portuguese: see also Index entries for sequences related to number of letters in n

bricks , sequences related to :

bricks: A000472 A003697 A006291 A006292 A006293 A031173 A031174 A031175

bridge hands, sorting: A065603

brilliant numbers: A078972*, A085647

Brun's constant: A065421, A005597, A038124

Buffon's needle: A060294*

building numbers from other numbers and the operations of addition, subtraction, etc: see under four 4's problem

bull (in graph theory): see A079577

Burnside's problem in group theory: A051576, A079682, A079683

Busy Beaver problem , sequences related to :

Busy Beaver problem: A028444*, A004147*, A060843*, A052200

Busy Beaver problem: see also Turing machines

button, sewing on a, A192314*, A192332, A191563

B_2 sequences , sequences related to :

B_2 sequences: A005282, A010672, A011185, A025582

B_n lattice: coordination sequence for: see A022145

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ca

C(n,2): A000217*

C(n,3): A000292*

C(n,4): A000332*

C(n,k): binomial coefficient n-choose-k (see A007318)

cab-taxi numbers: A047696

cabtaxi numbers: see cab-taxi numbers

cacti , sequences related to :

cacti, 2-ary: A054357*, A054358

cacti, 3-ary: A052393*, A054422

cacti, 4-ary: A052394*, A052395

cacti, 5-ary: A054363*, A054364

cacti, 6-ary: A054366*, A054367

cacti, 7-ary: A054369*, A054370

cacti, plane, 3-gonal: A054423

cacti, plane, 4-gonal: A054362

cacti, plane, 5-gonal: A054365

cacti, plane, 6-gonal: A054368

cacti, plane, 7-gonal: A054371

cacti, polygonal: A035082*, A035088*

cacti, rooted, polygonal: A035085*, A035086, A035087*

cacti, rooted, triangular: A002067, A003080*, A032035, A034940*, A091481, A091486, A091488

cacti, rooted, with bridges: A000237*, A035351*, A035352, A035353, A035357

cacti, triangular: A003081*, A034941*, A091485, A091487, A091489

cacti, with bridges: A000083* (unlabeled), A000314* (labeled), A035356

Cahen's constant: A006279, A006280, A006281

cake numbers: A000125*

calculator display: A006942* A010371* A018846 A018847 A018849 A038136 A053701 A063720

Cald's sequence: A006509*

calendar, sequences related to :

calendar, dates of days in: A008684*

calendar, days in year: A011763*

calendar, days per century: A011770, A011771

calendar, lengths of months: A008685*

calendar: see also A001356, A031139, A051121, A119406, A135795, A143994, A141039, A143995, A141287

campanology: see bell ringing

Canada perfect numbers: A070308

canalizing Boolean functions, sequences related to :

canalizing Boolean functions: A102449, A109460, A109461, A109462

cannonball problem: see A001032

Cantor set, sequences related to :

Cantor set: A054591 A170951 A170952 A110081 A121153 A170944 A135666 A088370

Cantor set: see also A005823 A170830 A170853 A102525 A137178 A076481 A055246 A055247 A028491 A113246 A134583

Cantor's sigma function: A055068

card arranging: A006063

card arranging: see also sorting

card games: A051921

card games: see also poker

card matching, sequences related to :

card matching: (1) A000279 A000316 A000459 A000489 A000535 A059056 A059057 A059058 A059059 A059060 A059061 A059062

card matching: (2) A059063 A059064 A059065 A059066 A059067 A059068 A059069 A059070 A059071 A059072 A059073 A059074

card sorting: see sorting

Carmichael numbers , sequences related to :

Carmichael numbers: A002997*

Carmichael numbers: see also (1) A002322 A006931 A006972 A029553 A029554 A029555 A029556 A029557 A029558 A029559 A029560 A029561

Carmichael numbers: see also (2) A029562 A029563 A029564 A029565 A029566 A029567 A029568 A029569 A029570 A029590 A029591 A033502

Carmichael numbers: see also (3) A034380 A036060 A036429 A046025 A051663

Carmichael numbers: see also (4) A074379 and A112428-A112432

Carmichael numbers: see also pseudoprimes

Carmichael's lambda function: A002322*, A011773

carry propagation: A190866, A190868

carryless arithmetic base b, sequences related to :

carryless arithmetic base 10, Boolean version: A169912, A169913, A169914

carryless arithmetic base 10, digital root version: A169908, A169910, A169911 (primes)

carryless arithmetic base 10, mod 10 version: A059729, A061909, A129967 & A169889 (squares), A168294, A168541, A169884, A169885 (cubes), A169886, A169890 (triangular numbers), A169973 (partitions)

carryless arithmetic base 10, mod 10 version: A169891, A169892, A169893, A169896, A169897, A169898, A169899 (divisor functions)

carryless arithmetic base 10, mod 10 version: A169894 (addition table), A059692 (multiplication table)

carryless arithmetic base 10, mod 10 version: A169904, A169905, A169906, A169907, A003893

carryless arithmetic base 10, mod 10 version: even numbers: A004520, A014263

carryless arithmetic base 10, mod 10 version: negative numbers: A055120

carryless arithmetic base 10, mod 10 version: primes: A169887, A169903, A163396, A169984, A143712, A144162

carryless arithmetic base 10, mod 10 version: see also A000689, A001148, A169916, A169917, A169918

carryless arithmetic base 10, mod 9 version: A169821, A169909, A029898

carryless arithmetic base 10: see also dismal arithmetic

carryless arithmetic base 2: A000695 (squares), A048720 and A091257 (multiplication table), A014580 (primes), A091242 (composites)

carryless arithmetic base 3: A169999

carryless arithmetic base 4: A170985

carryless arithmetic base 5: A170986

carryless arithmetic base 6: A170987

carryless arithmetic base 7: A170988

carryless arithmetic base 8: A170989

carryless arithmetic base 9: A170990

cascades of gates, sequences related to :

cascades of gates: A005608 A005609 A005610 A005611 A005613 A005616 A005618 A005619 A005739 A005749

caskets: A006901

casting out nines (digital root): A010888

Catalan , sequences related to :

Catalan constant: A006752, A014538

Catalan numbers : A000108*

Catalan numbers, 3-dimensional: A005789*

Catalan numbers, generalized: (1) A001003 A004148 A004149 A006629 A006630 A006631 A006632 A006633 A006634 A006635 A006636 A006637

Catalan numbers, generalized: (2) A023421 A023422 A023423 A023425 A023426 A023427 A023428 A023429 A023430 A023431 A023432 A023433

Catalan numbers, generalized: (3) A025242 A025748 A025749 A025750 A025751 A025752 A025753 A025754 A025755 A025756 A025757 A025758

Catalan numbers, generalized: (4) A025759 A025760 A025761 A025762 A025763 A053991

Catalan numbers: see also (1) A005807, A007317, A000957, A005568, A003046, A003047, A007595, A003150, A002996, A001453

Catalan numbers: see also (2) A051785

Catalan triangle: A009766, A008315, A028364, see also A002057

Catalan triangle: Adamson's generalization: A116925

Catalan's conjecture: A002760*, A023057, A023055, A001597

Catalan: A051785

Catalan: see also Index entries for sequences related to number of letters in n

categories, sequences related to :

categories, connected: A125698, A125699, A125700, A125702

categories, strongly connected: [sequences to be added]

categories: A125696, A125697, A125701

Cauchy numbers: A006232/A006233, A002657/A002790

Cayley's mistake: A000022*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ce

Cebychev is spelled Chebyshev throughout

cellular automata , sequences related to :

cellular automata (01): A001317 A006447 A006977 A006978 A010760 A018189 A019332 A019539 A019540 A019541 A019542 A019543

cellular automata (02): A034384 A038183 A038184 A038185 A047999 A048705 A048706 A048709 A048710 A048883 A051023

cellular automata (03): A056219 A060546 A060547 A060548 A060549 A060550 A060551 A060552 A060553 A063467 A070886 A070887

cellular automata (04): A070909 A070950 A071022 A071023 A071024 A071025 A071026 A071027 A071028 A071029 A071030 A071031

cellular automata (05): A071032 A071033 A071034 A071035 A071036 A071037 A071038 A071039 A071040 A071041 A071042 A071043

cellular automata (06): A071044 A071045 A071046 A071047 A071048 A071049 A071050 A071051 A071052 A071053 A071054 A071055

cellular automata (07): A051023

cellular automata, 2-dimensional ( 1): A147562, A160117, A160118, A160410. A160411 [more to be added here]

cellular automata, 3-dimensional: A160119, A160379, A161340, A160428

cellular automata, Rule 022: A071029

cellular automata, Rule 028: A070909

cellular automata, Rule 030: A070950*, A051023, A070951, A070952*, A151929, A092539, A110266, A1102676, A094603, A094604, A094605, A074890, A110240, A100053

cellular automata, Rule 041: A095951

cellular automata, Rule 050: A071028

cellular automata, Rule 054: A071030, A118108, A118109

cellular automata, Rule 058: A071028

cellular automata, Rule 060: A047999, A001317, A138276, A075438

cellular automata, Rule 062: A071031

cellular automata, Rule 070: A071022

cellular automata, Rule 078: A071023

cellular automata, Rule 086: A071032, A074890

cellular automata, Rule 090: A070886*, A001316, A001317, A038183, A048705, A048706, A048709, A048710, A048711, A048713, A048757, A071042, A080263, A086839, A138276

cellular automata, Rule 092: A071024

cellular automata, Rule 094: A071033, A118101, A118102

cellular automata, Rule 102: A047999, A075439, A117998

cellular automata, Rule 110: A070887*, A071048, A071048 , A075437, A095950, A117999

cellular automata, Rule 114: A071028

cellular automata, Rule 118: A071034

cellular automata, Rule 122: A071028

cellular automata, Rule 124: A071025

cellular automata, Rule 126: A071035

cellular automata, Rule 150: A071036, A118110, A038184, A038185, A138276, A138277, A048705, A048706, A048709, A048710, A048711, A048712, A048714

cellular automata, Rule 156: A070909

cellular automata, Rule 158: A071037, A118171, A118172

cellular automata, Rule 178: A071028

cellular automata, Rule 182: A071038

cellular automata, Rule 186: A071028

cellular automata, Rule 188: A071026, A118173, A118174

cellular automata, Rule 190: A071039, A118111

cellular automata, Rule 198: A071022

cellular automata, Rule 214: A071040

cellular automata, Rule 220: A118175

cellular automata, Rule 225: A078176

cellular automata, Rule 230: A071027

cellular automata, Rule 242: A071028

cellular automata, Rule 246: A071041

cellular automata, Rule 250: A071028, A002450

cellular automata, Rule 252: A074890

cellular automata, see also toothpick sequences

cellular automata, sequences related to, see also primes, transformed by cellular automata

centered polytope numbers, sequences related to :

centered cube numbers, higher-dimensional (1): A008514, A008515, A008516, A036085, A036086, A036087, A036088 A036089, A036090, A036091

centered cube numbers, higher-dimensional (2): A036092, A036093, A036094, A036095, A036096, A036097, A036098, A036099, A036100, A036101, A036102

centered cube numbers: A005898*

centered cuboctahedral numbers: A005902

centered dodecahedral numbers: A005904

centered hexagonal numbers : A003215

centered icosahedral numbers: A005902

centered orthoplex numbers: A001846

centered polygonal numbers (k*n^2-k*n+2)/2, for k = 1 and 2: A000124, A002061

centered polygonal numbers (k*n^2-k*n+2)/2, for k = 3 through 14 sides: A005448, A001844, A005891, A003215, A069099, A016754, A060544, A062786, A069125, A003154, A069126, A069127

centered polygonal numbers (k*n^2-k*n+2)/2, for k = 15 through 20 sides: A069128, A069129, A069130, A069131, A069132, A069133

centered polygonal numbers: A000124, A002061

centered square numbers : A001844

centered tetrahedral numbers: A005894*, A008498, A008499, A008500, A008501, A008502, A008503, A008504, A008505, A008506

centered triangular numbers : A005448

central binomial coefficients: see binomial coefficients, central

central factorial numbers , sequences related to :

central factorial numbers, triangle of: A008955, A008956, A008957, A008958, A036969

central factorial numbers: A000596 A000597 A001819 A001820 A001821 A001823 A001824 A001825 A002453 A002454 A002455 A049033

central polygonal numbers, see centered polygonal numbers

central trinomial coefficients: A002426*

centuries: see calendar

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ch

Chacon sequences: A049320*, A049321*

Chains:: A007047, A005603, A005602

challenge problems, see sequences that need extending

Champernowne , sequences related to :

Champernowne constant: A033307*, A030167*, A058068, A058069, A007376, A033308

Champernowne sequence: A030190*, A030302

change ringing: see bell ringing

character tables: see also degrees of irreducible representations

characteristic functions , sequences related to :

characteristic functions (000): char fn where where name of "chi_n=1"

characteristic functions (001): chi chi_n=1 chi_n=0

characteristic functions (002): A000007 A000004 A000027 all 0

characteristic functions (003): A000012 A001477 [empty] natural numbers

characteristic functions (004): A000035 A005408 A005843 odd numbers

characteristic functions (005): A003849 A003622 A022342

characteristic functions (006): A004641 A086377 A081477

characteristic functions (007): A005171 A018252 A000040 nonprimes

characteristic functions (008): A005369 A002378 A078358 pronic numbers

characteristic functions (009): A005614 A022342 A003622

characteristic functions (010): A008966 A005117 A013929 squarefree

characteristic functions (011): A010051 A000040 A018252 primes

characteristic functions (012): A010052 A000290 A000037 squares

characteristic functions (013): A010054 A000217 A014132 triangular numbers

characteristic functions (014): A010055 A000961 A024619 prime powers

characteristic functions (015): A010056 A000045 A001690 Fibonacci numbers

characteristic functions (016): A010057 A000578 A007412 cubes

characteristic functions (017): A010058 A000108 A092459 Catalan numbers

characteristic functions (018): A010059 A001969 A000069 evil numbers

characteristic functions (019): A010060 A000069 A001969 odious numbers

characteristic functions (020): A011655 A001651 A008585 not mult 3

characteristic functions (021): A012245 A000142 A063992 factorials

characteristic functions (022): A014306 A145397 A000292 m(m+1)(m+2)6

characteristic functions (023): A014578 A007417 A145204

characteristic functions (024): A020987 A022155 NA

characteristic functions (025): A023531 A000096 A007401 m(m+3)2

characteristic functions (026): A023533 A000292 A145397 m(m+1)(m+2)6

characteristic functions (027): A033683 A104777 NA odd squares mod 3 > 0

characteristic functions (028): A033684 A135556 NA squares mod 3 > 0

characteristic functions (029): A035263 A003159 A036554

characteristic functions (030): A036987 A000225 NA

characteristic functions (031): A038189 A091067 A091072

characteristic functions (033): A057427 A000027 A000004 positive numbers

characteristic functions (034): A059448 A059009 A059010

characteristic functions (035): A059841 A005843 A005408 even numbers

characteristic functions (036): A063524 A000012 A087156 all 1

characteristic functions (037): A064911 A001358 A100959 semiprimes

characteristic functions (038): A065043 A028260 A026424 even number of prime factors

characteristic functions (039): A065202 A065201 A065200

characteristic functions (040): A065333 A003586 A059485 3-smooth

characteristic functions (041): A066247 A002808 A008578 composite numbers

characteristic functions (042): A066829 A026424 A028260 odd number of prime factors

characteristic functions (043): A072401 A004215 NA of the form 4^m*(8k+7)

characteristic functions (044): A075802 A001597 A007916 perfect powers

characteristic functions (045): A075897 A048645 NA

characteristic functions (046): A079260 A002144 A137409 primes of form 4n+1

characteristic functions (047): A079261 A002145 A145395 primes of form 4n+3

characteristic functions (048): A079978 A008585 A001651 mult 3

characteristic functions (049): A079979 A008588 A047253 mult 6

characteristic functions (050): A079998 A008587 A047201 mult 5

characteristic functions (051): A080110 A080112 A080113

characteristic functions (052): A080111 A080113 A080112

characteristic functions (053): A080116 A014486 NA

characteristic functions (054): A080339 A008578 A002808 {1} union {primes}

characteristic functions (055): A080545 A006005 A065090 {1} union {odd primes}

characteristic functions (057): A082784 A008589 A047304 mult 7

characteristic functions (058): A083187 A002379 NA [ 3^n 2^n ]

characteristic functions (059): A083923 A057548 NA

characteristic functions (060): A083924 A072795 NA

characteristic functions (061): A085357 A003714 A004780 Fibbinary numbers

characteristic functions (062): A086299 A002473 A068191 7-smooth

characteristic functions (063): A088517 A001463 NA

characteristic functions (064): A089011 A005763 NA Weyl

characteristic functions (065): A091225 A014580 NA

characteristic functions (066): A091247 A091242 NA

characteristic functions (067): A092248 A030230 A030231 even number of distinct prime factors

characteristic functions (068): A093709 A028982 A028983 squares or twice squares

characteristic functions (069): A093719 A047273 A047235 (mod 2)^(mod 3)

characteristic functions (070): A095076 A020899 A095096

characteristic functions (071): A095111 A095096 A020899

characteristic functions (072): A098108 A016754 NA

characteristic functions (073): A099104 A066680 NA badly sieved numbers

characteristic functions (074): A099395 A007283 NA

characteristic functions (075): A101040 NA NA not more than 2 prime factors

characteristic functions (076): A101605 A014612 NA exactly 3 prime factors

characteristic functions (077): A101637 A014613 NA exactly 4 prime factors

characteristic functions (078): A102460 A000032 NA Lucas numbers

characteristic functions (079): A103673 A103676 A103677 (factorial)

characteristic functions (080): A103674 A103678 A103679 (factorial)

characteristic functions (081): A103675 A103680 A103681 (factorial)

characteristic functions (082): A105349 A000129 NA Pell numbers

characteristic functions (083): A107078 A013929 A005117 non unitary divisors

characteristic functions (084): A112526 A001694 A052485 powerful numbers

characteristic functions (085): A114986 A000201 A001950

characteristic functions (086): A118952 A118957 A118956

characteristic functions (087): A121262 A008586 A042968 mult 4

characteristic functions (088): A122255 A122254 A048136

characteristic functions (089): A122257 A005109 A122259 Pierpont primes

characteristic functions (090): A122261 A122260 NA mult. closure of Pierpont primes

characteristic functions (091): A122895 A123240 NA tau=Fibonacci

characteristic functions (092): A123927 A119885 NA tau=Lucas

characteristic functions (093): A130638 A005237 NA tau(n+1)=tau(n)

characteristic functions (094): A132138 A002977 A132142

characteristic functions (095): A133010 NA NA

characteristic functions (096): A133011 NA NA

characteristic functions (097): A133100 A085787 NA gen. heptagonal numbers

characteristic functions (098): A133101 A057569 NA

characteristic functions (099): A133872 A042948 A042964 congruent 0 or 1 mod 4

characteristic functions (100): A136522 A002113 A029742 palindrome

characteristic functions (101): A137794 A073491 A073492 no prime gaps in fact

characteristic functions (102): A139689 NA NA Chen

characteristic functions (103): A141260 A141259 NA

characteristic functions (104): A143731 A024619 A000961 more than 1 prime factor

characteristic functions (105): A145649 A000959 A050505 lucky numbers

characteristic functions (106): A156660 A005384 A138887 Sophie Germain primes

characteristic functions (107): A156659 A005385 A156657 safe primes

characteristic functions (108): A079559 A005187 A055938 range of A005187

characteristic functions (109): A151774 A018900 A161989 numbers with binary weight 2

characteristic functions (110): A167392 A000041 A167376 partition numbers

characteristic functions (111): A167393 A000009 A167377 range of A000009

characteristic functions (112): A168046 A052382 A011540 zerofree numbers

characteristic functions (113): A166486 A042968 A008586 not a multiple of 4

characteristic functions (114): A011558 A047201 A008587 coprime to 5

characteristic functions (115): A097325 A047253 A008588 not a multiple of 6

characteristic functions (116): A109720 A047304 A008589 coprime to 7

characteristic functions (117): A168181 A047592 A008590 not a multiple of 8

characteristic functions (118): A168182 A168183 A008591 not a multiple of 9

characteristic functions (119): A168184 A067251 A008592 not a multiple of 10

characteristic functions (120): A145568 A160542 A008593 coprime to 11

characteristic functions (121): A168185 A168186 A008594 not a multiple of 12

characteristic functions (122): A054521 A169581 A169581

characters of groups: A005368

characters, see also under symmetric group

Chebycheff is spelled Chebyshev throughout

Chebychev is spelled Chebyshev throughout

Chebyshev function theta(n): A035158, A057872, A083535

Chebyshev polynomials , sequences related to :

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 1): A001792 A001793 A001794 A002698 A005583 A005584 A006974 A006975 A006976 A007701 A008310 A008311

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 2): A020537 A020538 A020539 A039991 A053120 A001105 A002415 A002492 A005585 A040977 A050486 A008314

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 3): A053347 A054322 A054323 A054324 A054325 A054326 A054327 A054328 A054329 A054330 A054331 A054332

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 4): A054333 A054334 A001653 A070997 A001091 A072256 A001075 A001541 A005248 A003501 A056854 A056918

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 5): A057076 A001079 A023038 A011943 A023039 A001081 A001085 A077235 A077236 A077237 A077238 A077239

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 6): A077240 A077242 A077244 A077246 A077248 A077250 A077409 A077411 A001570 A001835 A056771 A077417

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 7): A077420 A077422 A077424 A077428 A078356 A078363 A078365 A078367 A078369 A000129 A001333 A001076

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 8): A001077 A005667 A005668 A041025 A078986

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 9): A090733 A090248 A090251 A001519 A097308-A097316 A097725-A097742 A097765-A097784 A097826-A097835

Chebyshev polynomials of the first kind (T- or C- polynomials) (10): A090729 A090731 A097837 A097838 A097840-A097845 A098244 A098246 A098247

Chebyshev polynomials of the first kind (T- or C- polynomials) (11): A098249 A098250 A098252 A098253 A098255 A098256 A098258 A098259 A098261 A098262 A098291 A098292 A078070 A004146 A007877 A054493 A011655 A011655 A049683

Chebyshev polynomials of the first kind (T- or C- polynomials) (12): A098249 A049684 A095004 A098296-A098299 A098300-A098310 A005386 A092936 A099270-A099273 A099275-A099279 A099365-A099374 A099368 A099397 A001108 A007598 A079291

Chebyshev polynomials of the second kind (U- or S- polynomials) ( 1): A001787 A001788 A001789 A002605 A003472 A008312 A008313 A008315 A010892 A020540 A020541 A020542

Chebyshev polynomials of the second kind (U- or S- polynomials) ( 2): A030195 A030191 A030221 A030192 A030240 A049310 A049347 A053117 A053118 A053119 A053121 A002700

Chebyshev polynomials of the second kind (U- or S- polynomials) ( 3): A053122 A051323 A053124 A053125 A053126 A053127 A053128 A053129 A053130 A053131 A001653 A001109

Chebyshev polynomials of the second kind (U- or S- polynomials) ( 4): A054450 A001090 A001353 A018913 A004187 A004254 A004189 A001834 A002878 A002315 A056594

Chebyshev polynomials of the second kind (U- or S- polynomials) ( 5): A057076 A057077 A057078 A057079 A057080 A057081 A001906 A056854 A056918

Chebyshev polynomials of the second kind (U- or S- polynomials) ( 6): A057083 A057084 A057085 A057086 A057087 A057088 A057089 A057090 A057091 A057092 A057093 A057094

Chebyshev polynomials of the second kind (U- or S- polynomials) ( 7): A025170 A025171 A004190 A001653 A070997 A001091 A072256 A054320 A004189 A001075 A005248 A003501

Chebyshev polynomials of the second kind (U- or S- polynomials) ( 8): A054491 A054488 A023038 A004191 A007655 A011943 A049660 A023039 A001081 A001085 A075843 A077234

Chebyshev polynomials of the second kind (U- or S- polynomials) ( 9): A077237 A077413 A077241 A077243 A077245 A077247 A077249 A077251 A077410 A077412

Chebyshev polynomials of the second kind (U- or S- polynomials) (10): A028230 A001835 A029547 A046176 A029548 A077416 A077418 A077420 A077421 A077422 A077423

Chebyshev polynomials of the second kind (U- or S- polynomials) (11): A077424 A077428 A078356 A078362 A078363 A078364 A078365 A078366 A078367 A078368 A078369

Chebyshev polynomials of the second kind (U- or S- polynomials) (12): A000129 A001333 A001076 A001077 A005667 A005668 A041025 A078986 A078987

Chebyshev polynomials of the second kind (U- or S- polynomials) (13): A092499 A090733 A090248 A090251 A001519 A078922 A092521 A092420 A076765 A076139 A049664

Chebyshev polynomials of the second kind (U- or S- polynomials) (14): A097726 A097727 A097729 A097730 A097732 A097733 A097735 A097736 A097738 A097739 A097741 A097742 A097766 A097767 A097769 A097770

Chebyshev polynomials of the second kind (U- or S- polynomials) (15): A090729 A090731 A097834-A097845 A098244-A098263 A098291 A098292 A078070 A004146 A007877 A099368 A041041 A052918 A054413 A054493 A098301

Chebyshev polynomials: see also A002680

checkers, sequences related to :

checkers: A055213, A133046, A133047

Chernoff sequence: A006939*, A051357

chess, number of games , sequences related to :

chess, number of games , definition: position = position with castling and en passant information, diagram = position without castling and en passant information

chess, number of games: A048987* A079485 A006494 A089956

chess, number of games: see also A007747 A007545 A007577

chess, number of diagrams: A019319* A090051

chess, number of positions: A083276* A057745 A089957

chessboard, halving a: A003155

chessboard, quartering a: A006067, A003213

Chinese: see also Index entries for sequences related to number of letters in n

chord diagrams, sequences related to :

chord diagrams: (1) A007293 A007473 A007474 A007769 A014595 A018191 A018192 A018193 A018225 A022489 A022490 A022491 A022492

chord diagrams: (2) A022493 A022494 A054499 A054938

chords in a circle: A001006, A054726, A006533, A000124

chords in a circle: see also Poonen-Rubinstein paper

Chowla sequence: see Mian-Chowla sequences

Chowla's function: sum of divisors excluding 1 and n: A048050*, A002954

chromatic number of graphs: A006670, A006671

chromatic number of surface: A000703*, A000934*, A059103

Chvatal conjecture, sequences related to :

Chvatal conjecture: A007008

circle of differences problem: A065677, A065678, A045794

circle problem: A057655*

circle product: A101330

circles, number of ways of arranging: A000081

circuits: A002631, A002632

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Cl

class numbers , sequences related to :

class numbers, (1): A000003, A001985, A001987, A001989, A001991, A002141, A002143, A003646, A003647

class numbers, (2): A003648, A003649, A003650, A003651, A003652, A005472, A005474, A005847, A005848*, A006641

class numbers, (3): A006642, A006643, A014599, A014600, A029702, A039958

class numbers, of fields (1):: A003652, A003649, A003650, A003651, A003639, A006642, A003638, A006643

class numbers, of fields (2):: A003636, A003637, A005472, A001989, A001987

class numbers, of fields: see also cyclotomic fields

class numbers, of fields: see also quadratic fields

class numbers, of imaginary quadratic fields, see quadratic fields, imaginary

class numbers, of imaginary quadratic fields: see also A081319 A060649 A038552 A046125

class numbers, of Q(sqrt -n), n squarefree: A000924*

class numbers, of quadratic forms:: A003646, A003647, A006641, A000003, A003648

class numbers:: A003173, A002143, A000233, A005847, A000362, A002052, A006203, A000508

classes, switching: A002854*, A006536

classifications of n things: A005646

Clifford group, sequences related to :

Clifford group, Molien series for: A008621, A008718, A024186 (real); A008620, A028288, A039946, A051354 (complex)

Clifford group, orders of: A001309* (real), A003956* (complex)

Clifford group: see also A014115, A014116, A027633

cliques: A005289

clock sequences: A028354, A028355, A028356, A068962, A007980

closed under certain affine transformations: see Klarner-Rado sequences

closure systems: A047684

clouds: A001205*

cluster series, sequences related to :

cluster series:: A003204, A003199, A003203, A003212, A003202, A003198, A003208, A003211, A003201, A003210, A003197, A003207, A003200, A003209, A003206, A003205

Clusters:: A007174, A007172, A007175, A007173

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Coa

coconut problem: A002021*, A002022*

codes, binary, linear sequences related to :

codes, binary, linear: see also Golay codes

codes, binary, linear: see also A034327, A034328, A034329

codes, binary, linear: total number of different [n,k] codes (summed over k): A006116

codes, binary, linear: total number of inequivalent indecomposable projective [n,k] codes (summed over k): A076838

codes, binary, linear: total number of inequivalent indecomposable [n,k] codes with no column of zeros (summed over k): A076836

codes, binary, linear: total number of inequivalent projective [n,k] codes (summed over k): A076834

codes, binary, linear: total number of inequivalent [n,k] codes (summed over k): A076766

codes, binary, linear: total number of inequivalent [n,k] codes containing no column of zeros (summed over k): A034343

codes, binary, linear: triangle of number of different [n,k] codes: A022166

codes, binary, linear: triangle of number of inequivalent indecomposable projective [n,k] codes: A076837

codes, binary, linear: triangle of number of inequivalent indecomposable [n,k] codes with no column of zeros: A076835

codes, binary, linear: triangle of number of inequivalent projective [n,k] codes: A076833

codes, binary, linear: triangle of number of inequivalent [n,k] codes containing no column of zeros: A076832

codes, binary, linear: triangle of number of inequivalent [n,k] codes: A076831

codes, binary, nonlinear: A039754, A000616

codes, binary, notation: [n,k] denotes a linear code of length n and dimension k, (n,k) a nonlinear code of length n containing k codewords

codes, covering , sequences related to :

codes, covering, directed: A066000, A019436

codes, covering: A060438* A060439* A060440* A000983* A060450* A060451* A029866 A029865 A029867 A004044

codes, covering: see also covers of an n-set

codes, covering: see also covering numbers

codes, for correcting deletions: A000016, A057591

codes, for correcting errors on Z-channel: A010101

codes, for correcting transposition errors: A057608, A057657

codes, maximal size of binary constant weight, see A(n,d,w)

codes, maximal size of binary, see A(n, d)

codes, mixed binary/ternary: A050142, A057574-A057584

codes, see also (1):: A005861, A005857, A005858, A005862, A005866, A005854, A005863, A005855, A005859, A005865

codes, see also (2):: A005851, A005860, A005856, A004037, A005852, A000983, A005853, A004038, A001839, A005864, A004039, A001843, A004035, A004036

codes, self-dual, sequences related to :

codes, self-dual, enumeration of: A003178*, A003179*, A028362*, A028363*, A001646*, A001647*

codes, self-dual, extremal of length 72: A018236*

codes, self-dual, see also (1): A002521 A005137 A007980 A008647 A014487 A016729 A018236 A018237 A027628 A028249

codes, self-dual, see also (2): A028288 A028309 A028344 A028345 A030062 A030331 A034414 A034415

coding a recurrence: A005204

Coding Fibonacci numbers:: A005203, A005205

Coefficients, for central differences, A002677, A002676, A002672, A002673, A002675

Coefficients, for extrapolation, A002738, A002737, A002739

Coefficients, for numerical differentiation, A002546, A002552, A002545, A002551, A002702, A002554, A002701, A002547, A002548, A002544, A002549, A002550, A002553, A002555

Coefficients, for numerical integration, A002685, A002209, A002208, A002686, A002195, A002196, A002197, A006685, A002198

Coefficients, for repeated integration (1):: A002397, A002404, A002398, A002405, A002682, A002401, A002400, A002689, A002688, A002684

Coefficients, for repeated integration (2):: A002683, A002687, A002406, A002402, A002403, A002399, A002681

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Coi

coincidences among binomial coefficients: A003015

coins , sequences related to :

coins needed to make change: see making change

coins, tossing: A006857

coins: (1) A005169 A005170 A007673 A011542 A019591 A033623 A047998 A053344 A054016 A054043 A054044 A054045

coins: (2) A054046

Collatz problem: see 3x+1 problem

collinear: A003142 A049615 A055674 A055675

Colombian numbers: A003052*, A006378, A036233

coloring , sequences related to :

coloring a cube: A006550, A006853, A006854, A000543, A060530, A047780

coloring a map: see map, coloring

coloring a triangle: A006527

coloring an m X n grid: A068253, A047938 (more to be added)

colorings: (1) A000543 A000545 A006008 A006342 A006853 A006854 A007687 A007688 A047937 A047938 A047939 A047940

colorings: (2) A047941 A047942 A047943 A047944 A047945 A048246

colossally abundant numbers: A004490

colouring is spelled coloring in the OEIS, which uses US rather than English spelling

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Com

combinations, sequences related to :

combinations, circular: A006499

combinatorial number systems: degree t=2: [A002024, A002262] and A138036. Degree t=3: [A194847, A194848, A056558] and A194849. Degree t=4: [A194882, A194883, A194884, A127324] and A194885. See also A056556, A056557, A127321, A127322, A127323.

combinations: A006499 A006500 A007785 A030662 A037031 A037255 A049022

comparative probability orderings: A005806

comparisons: A001768 A001855 A003071 A003075 A006282 A036604

complements , sequences related to :

complements of: Bell numbers, A092460; Catalan numbers, A092459; cubes, A007412; evil numbers, A000069; Fibonacci numbers, A001650; odious numbers, A001969; powers of 2, A057716; primes, A018252 and A002808; squares, A000037; triangular numbers, A014132

complete graph conjecture, sequences related to :

complete graph conjecture: A000933*

complete rulers: see perfect rulers

complexity , sequences related to :

complexity, of graphs: A006235 A006237 A006238 A007341 A007342

complexity, of n (this has been defined in several different ways): A005208, A005245*, A025280, A099053

complexity, of n: see also A003037, A005421, A005520

complexity, see also A036988

composite numbers, sequences related to :

composite numbers: A002808*

composite numbers: see also A005381

compositions , sequences related to :

compositions of n, explicitly: A066099, A124734, A108244, A108730

compositions of n, number of: A000079*, A126198*, A048004, A048887, A092129, A092921, A000073, A000078

compositions, into Fibonacci numbers: see Fibonacci numbers, number of ways to write n as a sum of

compositions: (1) A000100 A000102 A003242 A006456 A006979 A006980 A023358 A023360 A023361 A032020 A039911 A039912

compositions: (2) A048887 A055794 A055800 A055801 A000079*

compositions: see also under partitions

compositorial numbers: A036691*, A049650, A060880

compressibility: A007236

Comtet, Advanced Combinatorics, sequences found in

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Con

concatenate divisors: A037278*

concatenate prime factors: A037276*, A048595* (base 2)

concatenation of all numbers up through n, see here

concatenation: There is no universally accepted symbol for concatentaion!

concatenation: 'a1 followed by a2' is used in A034821

concatenation: a1 # a2 is used in A133344

concatenation: a1 & a2 and a1 + a2 may also be used

concatenation: a1 . a2 is used in A115437 (as in Perl)

concatenation: a1 // a2 is used in A115429 (as in Fortran)

concatenation: a1 : a2 is used in A089591

concatenation: a1 U a2 is used in A165784

concatenation: a1 ^ a2 is used in A091975 (cf. A091844)

concatenation: a1a2 is used in A089710

concatenation: a1_a2 is used in A153164

concatenation: Maple uses parse(cat(a1, a2, ..., an))

concatenation: Mathematica uses FromDigits[Join[IntegerDigits[a1], IntegerDigits[a2], ..., IntegerDigits[an]]] or ToExpression[StringJoin[ToString[a1], ToString[a2], ..., ToString[an]]] or FromDigits["a1"<>"a2"<>...<>"an"]

concatenation: Pari uses eval(Str(a1, a2, ..., an))

conditionally convergent series: A002387, A092324, A092267, A092753

conference matrices: see matrices, conference

configurations , sequences related to :

configurations (combinatorial or geometrical): A001403* A099999 A023994 A005787 A000698 A100001 A098702 A098804 A098822 A098841 A098851 A098852 A098854

Congruence property:: A002703, A002704, A002705

Congruences:: A001915, A001916

congruent mod 1 to 0 : A000004

congruent mod 10 to 0 (not) : A052382

congruent mod 10 to 0 : A008592

congruent mod 10 to 1 : A017281

congruent mod 10 to 2 : A017293

congruent mod 10 to 3 : A017305

congruent mod 10 to 4 : A017317

congruent mod 10 to 5 : A017329

congruent mod 10 to 6 : A017341

congruent mod 10 to 7 : A017353

congruent mod 10 to 8 : A017365

congruent mod 10 to 9 : A017377

congruent mod 10 to {1, 7} : A131229

congruent mod 10 to {1, 9} : A090771

congruent mod 10 to {2, 8} : A090772

congruent mod 10 to {4, 6} : A090773

congruent mod 2 to 0 (not) : A005408

congruent mod 2 to 0 : A005843

congruent mod 2 to 1 (not) : A005843

congruent mod 2 to 1 : A005408

congruent mod 3 to 0 (not) : A001651

congruent mod 3 to 0 : A008585

congruent mod 3 to 1 (not) : A007494

congruent mod 3 to 1 : A016777

congruent mod 3 to 2 (not) : A032766

congruent mod 3 to 2 : A016789

congruent mod 3 to {0, 1} : A032766

congruent mod 3 to {0, 2} : A007494

congruent mod 3 to {1, 2} : A001651

congruent mod 4 to 0 (not) : A042968

congruent mod 4 to 0 : A008586

congruent mod 4 to 1 (not) : A004772

congruent mod 4 to 1 : A016813

congruent mod 4 to 2 (not) : A042965

congruent mod 4 to 2 : A016825

congruent mod 4 to 3 (not) : A004773

congruent mod 4 to 3 : A004767

congruent mod 4 to {0, 1, 2} : A004773

congruent mod 4 to {0, 1, 3} : A042965

congruent mod 4 to {0, 1} : A042948

congruent mod 4 to {0, 2, 3} : A004772

congruent mod 4 to {0, 3} : A014601

congruent mod 4 to {1, 2, 3} : A042968

congruent mod 4 to {1, 2} : A042963

congruent mod 4 to {2, 3} : A042964

congruent mod 5 to 0 (not) : A047201

congruent mod 5 to 0 : A008587

congruent mod 5 to 1 (not) : A047203

congruent mod 5 to 1 : A016861

congruent mod 5 to 2 (not) : A047207

congruent mod 5 to 2 : A016873

congruent mod 5 to 3 (not) : A032769

congruent mod 5 to 3 : A016885

congruent mod 5 to 4 (not) : A001068

congruent mod 5 to 4 : A016897

congruent mod 5 to {0, 1, 2, 3} : A001068

congruent mod 5 to {0, 1, 2, 4} : A032769

congruent mod 5 to {0, 1, 2} : A047217

congruent mod 5 to {0, 1, 3, 4} : A047207

congruent mod 5 to {0, 1, 3} : A047220

congruent mod 5 to {0, 1, 4} : A008854

congruent mod 5 to {0, 1} : A008851

congruent mod 5 to {0, 2, 3, 4} : A047203

congruent mod 5 to {0, 2, 3} : A047222

congruent mod 5 to {0, 2, 4} : A047212

congruent mod 5 to {0, 2} : A047215

congruent mod 5 to {0, 3, 4} : A047205

congruent mod 5 to {0, 3} : A047218

congruent mod 5 to {0, 4} : A047208

congruent mod 5 to {1, 2, 3, 4} : A047201

congruent mod 5 to {1, 2, 3} : A047223

congruent mod 5 to {1, 2, 4} : A032793

congruent mod 5 to {1, 2} : A047216

congruent mod 5 to {1, 3, 4} : A047206

congruent mod 5 to {1, 3} : A047219

congruent mod 5 to {1, 4} : A047209

congruent mod 5 to {2, 3, 4} : A047202

congruent mod 5 to {2, 3} : A047221

congruent mod 5 to {2, 4} : A047211

congruent mod 5 to {3, 4} : A047204

congruent mod 6 to 0 (not) : A047253

congruent mod 6 to 0 : A008588

congruent mod 6 to 1 (not) : A047248

congruent mod 6 to 1 : A016921

congruent mod 6 to 2 (not) : A047252

congruent mod 6 to 2 : A016933

congruent mod 6 to 3 (not) : A047263

congruent mod 6 to 3 : A016945

congruent mod 6 to 4 (not) : A047256

congruent mod 6 to 4 : A016957

congruent mod 6 to 5 (not) : A047226

congruent mod 6 to 5 : A016969

congruent mod 6 to {0, 1, 2, 3, 4} : A047226

congruent mod 6 to {0, 1, 2, 3, 5} : A047256

congruent mod 6 to {0, 1, 2, 3} : A047246

congruent mod 6 to {0, 1, 2, 4, 5} : A047263

congruent mod 6 to {0, 1, 2, 4} : A047237

congruent mod 6 to {0, 1, 2, 5} : A047269

congruent mod 6 to {0, 1, 2} : A047240

congruent mod 6 to {0, 1, 3, 4, 5} : A047252

congruent mod 6 to {0, 1, 3, 5} : A047273

congruent mod 6 to {0, 1, 3} : A047242

congruent mod 6 to {0, 1, 4, 5} : A047260

congruent mod 6 to {0, 1, 4} : A047234

congruent mod 6 to {0, 1, 5} : A047266

congruent mod 6 to {0, 1} : A047225

congruent mod 6 to {0, 2, 3, 4, 5} : A047248

congruent mod 6 to {0, 2, 3, 4} : A047229

congruent mod 6 to {0, 2, 3} : A047244

congruent mod 6 to {0, 2, 4, 5} : A047262

congruent mod 6 to {0, 2, 5} : A047267

congruent mod 6 to {0, 2} : A047238

congruent mod 6 to {0, 3, 4, 5} : A047250

congruent mod 6 to {0, 3, 4} : A047231

congruent mod 6 to {0, 3, 5} : A047271

congruent mod 6 to {0, 4, 5} : A047258

congruent mod 6 to {0, 4} : A047233

congruent mod 6 to {0, 5} : A047264

congruent mod 6 to {1, 2, 3, 4, 5} : A047248

congruent mod 6 to {1, 2, 3, 4} : A031477

congruent mod 6 to {1, 2, 3, 5} : A047255

congruent mod 6 to {1, 2, 3} : A047245

congruent mod 6 to {1, 2, 4} : A047236

congruent mod 6 to {1, 2, 5} : A047268

congruent mod 6 to {1, 2} : A047239

congruent mod 6 to {1, 3, 4, 5} : A047251

congruent mod 6 to {1, 3, 4} : A029739

congruent mod 6 to {1, 3} : A047241

congruent mod 6 to {1, 4, 5} : A047259

congruent mod 6 to {1, 5} : A007310

congruent mod 6 to {2, 3, 4, 5} : A047247

congruent mod 6 to {2, 3, 4} : A047228

congruent mod 6 to {2, 3, 5} : A047254

congruent mod 6 to {2, 3} : A047243

congruent mod 6 to {2, 4, 5} : A047261

congruent mod 6 to {2, 4} : A047235

congruent mod 6 to {3, 4, 5} : A047249

congruent mod 6 to {3, 4} : A047230

congruent mod 6 to {3, 5} : A047270

congruent mod 6 to {4, 5} : A047257

congruent mod 7 to 0 (not) : A047304

congruent mod 7 to 0 : A008589

congruent mod 7 to 1 (not) : A047306

congruent mod 7 to 1 : A016993

congruent mod 7 to 2 (not) : A047310

congruent mod 7 to 2 : A017005

congruent mod 7 to 3 (not) : A047318

congruent mod 7 to 3 : A017017

congruent mod 7 to 4 (not) : A032775

congruent mod 7 to 4 : A017029

congruent mod 7 to 5 (not) : A047303

congruent mod 7 to 5 : A017041

congruent mod 7 to 6 (not) : A047368

congruent mod 7 to 6 : A017053

congruent mod 7 to {0, 1, 2, 3, 4, 5} : A047368

congruent mod 7 to {0, 1, 2, 3, 4, 6} : A047303

congruent mod 7 to {0, 1, 2, 3, 4} : A047337

congruent mod 7 to {0, 1, 2, 3, 5, 6} : A032775

congruent mod 7 to {0, 1, 2, 3, 5} : A047373

congruent mod 7 to {0, 1, 2, 3, 6} : A047287

congruent mod 7 to {0, 1, 2, 3} : A047361

congruent mod 7 to {0, 1, 2, 4, 5, 6} : A047318

congruent mod 7 to {0, 1, 2, 4, 5} : A047381

congruent mod 7 to {0, 1, 2, 4, 6} : A047295

congruent mod 7 to {0, 1, 2, 4} : A047351

congruent mod 7 to {0, 1, 2, 5, 6} : A047326

congruent mod 7 to {0, 1, 2, 5} : A047388

congruent mod 7 to {0, 1, 2, 6} : A047279

congruent mod 7 to {0, 1, 2} : A047354

congruent mod 7 to {0, 1, 3, 4, 5, 6} : A047310

congruent mod 7 to {0, 1, 3, 4, 5} : A047367

congruent mod 7 to {0, 1, 3, 4, 6} : A047299

congruent mod 7 to {0, 1, 3, 4} : A047344

congruent mod 7 to {0, 1, 3, 5, 6} : A047330

congruent mod 7 to {0, 1, 3, 5} : A047392

congruent mod 7 to {0, 1, 3, 6} : A047283

congruent mod 7 to {0, 1, 3} : A047357

congruent mod 7 to {0, 1, 4, 5, 6} : A047314

congruent mod 7 to {0, 1, 4, 5} : A047377

congruent mod 7 to {0, 1, 4, 6} : A047291

congruent mod 7 to {0, 1, 4} : A047347

congruent mod 7 to {0, 1, 5, 6} : A047322

congruent mod 7 to {0, 1, 5} : A047384

congruent mod 7 to {0, 1, 6} : A047275

congruent mod 7 to {0, 1} : A047274

congruent mod 7 to {0, 2, 3, 4, 5, 6} : A047306

congruent mod 7 to {0, 2, 3, 4, 5} : A047363

congruent mod 7 to {0, 2, 3, 4, 6} : A047301

congruent mod 7 to {0, 2, 3, 4} : A047340

congruent mod 7 to {0, 2, 3, 5, 6} : A047332

congruent mod 7 to {0, 2, 3, 5} : A047371

congruent mod 7 to {0, 2, 3, 6} : A047285

congruent mod 7 to {0, 2, 3} : A047359

congruent mod 7 to {0, 2, 4, 5, 6} : A047316

congruent mod 7 to {0, 2, 4, 5} : A047379

congruent mod 7 to {0, 2, 4, 6} : A047293

congruent mod 7 to {0, 2, 4} : A047349

congruent mod 7 to {0, 2, 5, 6} : A047324

congruent mod 7 to {0, 2, 5} : A047386

congruent mod 7 to {0, 2, 6} : A047277

congruent mod 7 to {0, 2} : A047352

congruent mod 7 to {0, 3, 4, 5, 6} : A047308

congruent mod 7 to {0, 3, 4, 5} : A047365

congruent mod 7 to {0, 3, 4, 6} : A047297

congruent mod 7 to {0, 3, 4} : A047342

congruent mod 7 to {0, 3, 5, 6} : A047328

congruent mod 7 to {0, 3, 5} : A047390

congruent mod 7 to {0, 3, 6} : A047281

congruent mod 7 to {0, 3} : A047355

congruent mod 7 to {0, 4, 5, 6} : A047312

congruent mod 7 to {0, 4, 5} : A047375

congruent mod 7 to {0, 4, 6} : A047289

congruent mod 7 to {0, 4} : A047345

congruent mod 7 to {0, 5, 6} : A047320

congruent mod 7 to {0, 5} : A047382

congruent mod 7 to {0, 6} : A047335

congruent mod 7 to {1, 2, 3, 4, 5, 6} : A047304

congruent mod 7 to {1, 2, 3, 4, 5} : A047369

congruent mod 7 to {1, 2, 3, 4, 6} : A047302

congruent mod 7 to {1, 2, 3, 4} : A047338

congruent mod 7 to {1, 2, 3, 5, 6} : A032796

congruent mod 7 to {1, 2, 3, 5} : A047372

congruent mod 7 to {1, 2, 3, 6} : A047286

congruent mod 7 to {1, 2, 3} : A047360

congruent mod 7 to {1, 2, 4, 5, 6} : A047317

congruent mod 7 to {1, 2, 4, 5} : A047380

congruent mod 7 to {1, 2, 4, 6} : A047294

congruent mod 7 to {1, 2, 4} : A047350

congruent mod 7 to {1, 2, 5, 6} : A047325

congruent mod 7 to {1, 2, 5} : A047387

congruent mod 7 to {1, 2, 6} : A047278

congruent mod 7 to {1, 2} : A047353

congruent mod 7 to {1, 3, 4, 5, 6} : A047309

congruent mod 7 to {1, 3, 4, 5} : A047366

congruent mod 7 to {1, 3, 4, 6} : A047298

congruent mod 7 to {1, 3, 4} : A047343

congruent mod 7 to {1, 3, 5, 6} : A047329

congruent mod 7 to {1, 3, 5} : A047391

congruent mod 7 to {1, 3, 6} : A047282

congruent mod 7 to {1, 3} : A047356

congruent mod 7 to {1, 4, 5, 6} : A047313

congruent mod 7 to {1, 4, 5} : A047376

congruent mod 7 to {1, 4, 6} : A047290

congruent mod 7 to {1, 4} : A047346

congruent mod 7 to {1, 5, 6} : A047321

congruent mod 7 to {1, 5} : A047383

congruent mod 7 to {1, 6} : A047336

congruent mod 7 to {2, 3, 4, 5, 6} : A047305

congruent mod 7 to {2, 3, 4, 5} : A047362

congruent mod 7 to {2, 3, 4, 6} : A047300

congruent mod 7 to {2, 3, 4} : A047339

congruent mod 7 to {2, 3, 5, 6} : A047331

congruent mod 7 to {2, 3, 5} : A047370

congruent mod 7 to {2, 3, 6} : A047284

congruent mod 7 to {2, 3} : A047358

congruent mod 7 to {2, 4, 5, 6} : A047315

congruent mod 7 to {2, 4, 5} : A047378

congruent mod 7 to {2, 4, 6} : A047292

congruent mod 7 to {2, 4} : A047348

congruent mod 7 to {2, 5, 6} : A047323

congruent mod 7 to {2, 5} : A047385

congruent mod 7 to {2, 6} : A047276

congruent mod 7 to {3, 4, 5, 6} : A047307

congruent mod 7 to {3, 4, 5} : A047364

congruent mod 7 to {3, 4, 6} : A047296

congruent mod 7 to {3, 4} : A047341

congruent mod 7 to {3, 5, 6} : A047327

congruent mod 7 to {3, 5} : A047389

congruent mod 7 to {3, 6} : A047280

congruent mod 7 to {4, 5, 6} : A047311

congruent mod 7 to {4, 5} : A047374

congruent mod 7 to {4, 6} : A047288

congruent mod 7 to {5, 6} : A047319

congruent mod 8 to 0 (not) : A047592

congruent mod 8 to 0 : A008590

congruent mod 8 to 1 (not) : A047594

congruent mod 8 to 1 : A017077

congruent mod 8 to 2 (not) : A047565

congruent mod 8 to 2 : A017089

congruent mod 8 to 3 (not) : A047573

congruent mod 8 to 3 : A017101

congruent mod 8 to 4 (not) : A047588

congruent mod 8 to 4 : A017113

congruent mod 8 to 5 (not) : A004776

congruent mod 8 to 5 : A004770

congruent mod 8 to 6 (not) : A047595

congruent mod 8 to 6 : A017137

congruent mod 8 to 7 (not) : A004777

congruent mod 8 to 7 : A004771

congruent mod 8 to {0, 1, 2, 3, 4, 5, 6} : A004777

congruent mod 8 to {0, 1, 2, 3, 4, 5, 7} : A047595

congruent mod 8 to {0, 1, 2, 3, 4, 5} : A047602

congruent mod 8 to {0, 1, 2, 3, 4, 6, 7} : A004776

congruent mod 8 to {0, 1, 2, 3, 4, 6} : A047420

congruent mod 8 to {0, 1, 2, 3, 4, 7} : A047549

congruent mod 8 to {0, 1, 2, 3, 4} : A047453

congruent mod 8 to {0, 1, 2, 3, 5, 6, 7} : A047588

congruent mod 8 to {0, 1, 2, 3, 5, 6} : A047450

congruent mod 8 to {0, 1, 2, 3, 5, 7} : A047490

congruent mod 8 to {0, 1, 2, 3, 5} : A047607

congruent mod 8 to {0, 1, 2, 3, 6, 7} : A047505

congruent mod 8 to {0, 1, 2, 3, 6} : A047405

congruent mod 8 to {0, 1, 2, 3, 7} : A047534

congruent mod 8 to {0, 1, 2, 3} : A047476

congruent mod 8 to {0, 1, 2, 4, 5, 6, 7} : A047573

congruent mod 8 to {0, 1, 2, 4, 5, 7} : A047498

congruent mod 8 to {0, 1, 2, 4, 5} : A047614

congruent mod 8 to {0, 1, 2, 4, 6, 7} : A047513

congruent mod 8 to {0, 1, 2, 4, 6} : A047412

congruent mod 8 to {0, 1, 2, 4, 7} : A047542

congruent mod 8 to {0, 1, 2, 4} : A047466

congruent mod 8 to {0, 1, 2, 5, 6, 7} : A047581

congruent mod 8 to {0, 1, 2, 5, 6} : A047442

congruent mod 8 to {0, 1, 2, 5, 7} : A047483

congruent mod 8 to {0, 1, 2, 5} : A047620

congruent mod 8 to {0, 1, 2, 6, 7} : A047555

congruent mod 8 to {0, 1, 2, 6} : A047397

congruent mod 8 to {0, 1, 2, 7} : A047527

congruent mod 8 to {0, 1, 2} : A047469

congruent mod 8 to {0, 1, 3, 4, 5, 6, 7} : A047565

congruent mod 8 to {0, 1, 3, 4, 5, 6} : A047428

congruent mod 8 to {0, 1, 3, 4, 5} : A047601

congruent mod 8 to {0, 1, 3, 4, 6, 7} : A047517

congruent mod 8 to {0, 1, 3, 4, 6} : A047416

congruent mod 8 to {0, 1, 3, 4, 7} : A047545

congruent mod 8 to {0, 1, 3, 4} : A047460

congruent mod 8 to {0, 1, 3, 5, 6, 7} : A047585

congruent mod 8 to {0, 1, 3, 5, 6} : A047446

congruent mod 8 to {0, 1, 3, 5, 7} : A047486

congruent mod 8 to {0, 1, 3, 5} : A047624

congruent mod 8 to {0, 1, 3, 6, 7} : A047559

congruent mod 8 to {0, 1, 3, 6} : A047401

congruent mod 8 to {0, 1, 3, 7} : A047530

congruent mod 8 to {0, 1, 3} : A047472

congruent mod 8 to {0, 1, 4, 5, 6, 7} : A047569

congruent mod 8 to {0, 1, 4, 5, 6} : A047432

congruent mod 8 to {0, 1, 4, 5, 7} : A047494

congruent mod 8 to {0, 1, 4, 6, 7} : A047509

congruent mod 8 to {0, 1, 4, 6} : A047409

congruent mod 8 to {0, 1, 4, 7} : A047538

congruent mod 8 to {0, 1, 4} : A047462

congruent mod 8 to {0, 1, 5, 6, 7} : A047577

congruent mod 8 to {0, 1, 5, 6} : A047439

congruent mod 8 to {0, 1, 5, 7} : A047479

congruent mod 8 to {0, 1, 5} : A047616

congruent mod 8 to {0, 1, 6, 7} : A047551

congruent mod 8 to {0, 1, 6} : A047394

congruent mod 8 to {0, 1, 7} : A047523

congruent mod 8 to {0, 1} : A047393

congruent mod 8 to {0, 2, 3, 4, 5, 6, 7} : A047594

congruent mod 8 to {0, 2, 3, 4, 5, 6} : A047424

congruent mod 8 to {0, 2, 3, 4, 5, 7} : A047503

congruent mod 8 to {0, 2, 3, 4, 5} : A047597

congruent mod 8 to {0, 2, 3, 4, 6} : A047418

congruent mod 8 to {0, 2, 3, 4, 7} : A047547

congruent mod 8 to {0, 2, 3, 4} : A047456

congruent mod 8 to {0, 2, 3, 5, 6, 7} : A047587

congruent mod 8 to {0, 2, 3, 5, 6} : A047448

congruent mod 8 to {0, 2, 3, 5, 7} : A047488

congruent mod 8 to {0, 2, 3, 5} : A047605

congruent mod 8 to {0, 2, 3, 6, 7} : A047560

congruent mod 8 to {0, 2, 3, 6} : A047403

congruent mod 8 to {0, 2, 3, 7} : A047532

congruent mod 8 to {0, 2, 3} : A047474

congruent mod 8 to {0, 2, 4, 5, 6, 7} : A047571

congruent mod 8 to {0, 2, 4, 5, 6} : A047434

congruent mod 8 to {0, 2, 4, 5, 7} : A047496

congruent mod 8 to {0, 2, 4, 5} : A047612

congruent mod 8 to {0, 2, 4, 6, 7} : A047511

congruent mod 8 to {0, 2, 4, 7} : A047540

congruent mod 8 to {0, 2, 4} : A047464

congruent mod 8 to {0, 2, 5, 6, 7} : A047579

congruent mod 8 to {0, 2, 5, 6} : A047441

congruent mod 8 to {0, 2, 5, 7} : A047481

congruent mod 8 to {0, 2, 5} : A047618

congruent mod 8 to {0, 2, 6, 7} : A047553

congruent mod 8 to {0, 2, 6} : A047395

congruent mod 8 to {0, 2, 7} : A047525

congruent mod 8 to {0, 2} : A047467

congruent mod 8 to {0, 3, 4, 5, 6, 7} : A047563

congruent mod 8 to {0, 3, 4, 5, 6} : A047426

congruent mod 8 to {0, 3, 4, 5, 7} : A047500

congruent mod 8 to {0, 3, 4, 5} : A047599

congruent mod 8 to {0, 3, 4, 6, 7} : A047515

congruent mod 8 to {0, 3, 4, 6} : A047414

congruent mod 8 to {0, 3, 4} : A047458

congruent mod 8 to {0, 3, 5, 6, 7} : A047583

congruent mod 8 to {0, 3, 5, 6} : A047444

congruent mod 8 to {0, 3, 5} : A047622

congruent mod 8 to {0, 3, 6, 7} : A047557

congruent mod 8 to {0, 3, 6} : A047399

congruent mod 8 to {0, 3, 7} : A047528

congruent mod 8 to {0, 3} : A047470

congruent mod 8 to {0, 4, 5, 6, 7} : A047567

congruent mod 8 to {0, 4, 5, 6} : A047430

congruent mod 8 to {0, 4, 5, 7} : A047492

congruent mod 8 to {0, 4, 5} : A047609

congruent mod 8 to {0, 4, 6, 7} : A047507

congruent mod 8 to {0, 4, 6} : A047407

congruent mod 8 to {0, 4, 7} : A047536

congruent mod 8 to {0, 5, 6, 7} : A047575

congruent mod 8 to {0, 5, 6} : A047437

congruent mod 8 to {0, 5, 7} : A047477

congruent mod 8 to {0, 5} : A047615

congruent mod 8 to {0, 6, 7} : A047590

congruent mod 8 to {0, 6} : A047451

congruent mod 8 to {0, 7} : A047521

congruent mod 8 to {1, 2, 3, 4, 5, 6, 7} : A047592

congruent mod 8 to {1, 2, 3, 4, 5, 6} : A047422

congruent mod 8 to {1, 2, 3, 4, 5, 7} : A047504

congruent mod 8 to {1, 2, 3, 4, 5} : A047603

congruent mod 8 to {1, 2, 3, 4, 6, 7} : A047519

congruent mod 8 to {1, 2, 3, 4, 6} : A047419

congruent mod 8 to {1, 2, 3, 4, 7} : A047449

congruent mod 8 to {1, 2, 3, 4, 7} : A047548

congruent mod 8 to {1, 2, 3, 4} : A047454

congruent mod 8 to {1, 2, 3, 5, 7} : A047489

congruent mod 8 to {1, 2, 3, 5} : A047606

congruent mod 8 to {1, 2, 3, 6, 7} : A047561

congruent mod 8 to {1, 2, 3, 6} : A047404

congruent mod 8 to {1, 2, 3, 7} : A047533

congruent mod 8 to {1, 2, 3} : A047475

congruent mod 8 to {1, 2, 4, 5, 6, 7} : A047572

congruent mod 8 to {1, 2, 4, 5, 6} : A047435

congruent mod 8 to {1, 2, 4, 5, 7} : A047497

congruent mod 8 to {1, 2, 4, 5} : A047613

congruent mod 8 to {1, 2, 4, 6, 7} : A047512

congruent mod 8 to {1, 2, 4, 6} : A047411

congruent mod 8 to {1, 2, 4, 7} : A047541

congruent mod 8 to {1, 2, 4} : A047465

congruent mod 8 to {1, 2, 5, 6, 7} : A047580

congruent mod 8 to {1, 2, 5, 7} : A047482

congruent mod 8 to {1, 2, 5} : A047619

congruent mod 8 to {1, 2, 6, 7} : A047554

congruent mod 8 to {1, 2, 6} : A047396

congruent mod 8 to {1, 2, 7} : A047526

congruent mod 8 to {1, 2} : A047468

congruent mod 8 to {1, 3, 4, 5, 6, 7} : A047564

congruent mod 8 to {1, 3, 4, 5, 6} : A047427

congruent mod 8 to {1, 3, 4, 5, 7} : A047501

congruent mod 8 to {1, 3, 4, 5} : A047600

congruent mod 8 to {1, 3, 4, 6, 7} : A047516

congruent mod 8 to {1, 3, 4, 6} : A047415

congruent mod 8 to {1, 3, 4, 7} : A047544

congruent mod 8 to {1, 3, 4} : A047459

congruent mod 8 to {1, 3, 5, 6, 7} : A047584

congruent mod 8 to {1, 3, 5, 6} : A047445

congruent mod 8 to {1, 3, 5} : A047623

congruent mod 8 to {1, 3, 6, 7} : A047558

congruent mod 8 to {1, 3, 6} : A047400

congruent mod 8 to {1, 3, 7} : A047529

congruent mod 8 to {1, 3} : A047471

congruent mod 8 to {1, 4, 5, 6, 7} : A047568

congruent mod 8 to {1, 4, 5, 6} : A047431

congruent mod 8 to {1, 4, 5, 7} : A047493

congruent mod 8 to {1, 4, 5} : A047610

congruent mod 8 to {1, 4, 6, 7} : A047508

congruent mod 8 to {1, 4, 6} : A047408

congruent mod 8 to {1, 4, 7} : A047537

congruent mod 8 to {1, 4} : A047461

congruent mod 8 to {1, 5, 6, 7} : A047576

congruent mod 8 to {1, 5, 6} : A047438

congruent mod 8 to {1, 5, 7} : A047478

congruent mod 8 to {1, 6, 7} : A047591

congruent mod 8 to {1, 6} : A047452

congruent mod 8 to {1, 7} : A047522

congruent mod 8 to {2, 3, 4, 5, 6, 7} : A047593

congruent mod 8 to {2, 3, 4, 5, 6} : A047423

congruent mod 8 to {2, 3, 4, 5, 7} : A047502

congruent mod 8 to {2, 3, 4, 5} : A047596

congruent mod 8 to {2, 3, 4, 6, 7} : A047518

congruent mod 8 to {2, 3, 4, 6} : A047417

congruent mod 8 to {2, 3, 4, 7} : A047546

congruent mod 8 to {2, 3, 4} : A047455

congruent mod 8 to {2, 3, 5, 6, 7} : A047586

congruent mod 8 to {2, 3, 5, 6} : A047447

congruent mod 8 to {2, 3, 5, 7} : A047487

congruent mod 8 to {2, 3, 5} : A047604

congruent mod 8 to {2, 3, 6} : A047402

congruent mod 8 to {2, 3, 7} : A047531

congruent mod 8 to {2, 3} : A047473

congruent mod 8 to {2, 4, 5, 6, 7} : A047570

congruent mod 8 to {2, 4, 5, 6} : A047433

congruent mod 8 to {2, 4, 5, 7} : A047495

congruent mod 8 to {2, 4, 5} : A047611

congruent mod 8 to {2, 4, 6, 7} : A047510

congruent mod 8 to {2, 4, 6} : A047410

congruent mod 8 to {2, 4, 7} : A047539

congruent mod 8 to {2, 4} : A047463

congruent mod 8 to {2, 5, 6, 7} : A047578

congruent mod 8 to {2, 5, 6} : A047440

congruent mod 8 to {2, 5, 7} : A047480

congruent mod 8 to {2, 5} : A047617

congruent mod 8 to {2, 6, 7} : A047552

congruent mod 8 to {2, 7} : A047524

congruent mod 8 to {3, 4, 5, 6, 7} : A047562

congruent mod 8 to {3, 4, 5, 6} : A047425

congruent mod 8 to {3, 4, 5, 7} : A047499

congruent mod 8 to {3, 4, 5} : A047598

congruent mod 8 to {3, 4, 6, 7} : A047514

congruent mod 8 to {3, 4, 6} : A047413

congruent mod 8 to {3, 4, 7} : A047543

congruent mod 8 to {3, 4} : A047457

congruent mod 8 to {3, 5, 6, 7} : A047582

congruent mod 8 to {3, 5, 6} : A047443

congruent mod 8 to {3, 5, 7} : A047484

congruent mod 8 to {3, 5} : A047621

congruent mod 8 to {3, 6, 7} : A047556

congruent mod 8 to {3, 6} : A047398

congruent mod 8 to {4, 5, 6, 7} : A047566

congruent mod 8 to {4, 5, 6} : A047429

congruent mod 8 to {4, 5, 7} : A047491

congruent mod 8 to {4, 5} : A047608

congruent mod 8 to {4, 6, 7} : A047506

congruent mod 8 to {4, 6} : A047406

congruent mod 8 to {4, 7} : A047535

congruent mod 8 to {5, 6, 7} : A047574

congruent mod 8 to {5, 6} : A047436

congruent mod 8 to {5, 7} : A047550

congruent mod 8 to {6, 7} : A047589

congruent mod 9 to 0 (not) : A168183

congruent mod 9 to 0 : A008591

congruent mod 9 to 1 : A017173

congruent mod 9 to 2 : A017185

congruent mod 9 to 3 : A017197

congruent mod 9 to 4 : A017209

congruent mod 9 to 5 : A017221

congruent mod 9 to 6 : A017233

congruent mod 9 to 7 : A017245

congruent mod 9 to 8 : A017257

congruent mod 9 to {0, 1, 2, 3, 6, 7, 8} : A060464

congruent mod 9 to {0, 1} : A090570

congruent mod 9 to {0, 2, 5, 8} : A174438

congruent mod 9 to {1, 4, 5, 8} : A174396

congruent mod 9 to {1, 8} : A056020

congruent mod 9 to {2, 4, 5, 7} : A056527

congruent mod 9 to {2, 7} : A063289

congruent mod 9 to {3, 6} : A016051

congruent mod 9 to {4, 5} : A156638

congruent mod 9 to {4, 7} : A125758

congruent numbers: A003273*, A006991, A016090

congruent products between domains N and GF(2)[X] , sequences defined by :

congruent products between domains N and GF(2)[X], Here * stands for ordinary multiplication (A004247), and X means carryless GF(2)[X] multiplication (A048720))

congruent products between domains N and GF(2)[X], 3*n = 3Xn (A003714), 3*n = 7Xn (A048717), 3*n = 7Xn and 5*n = 5Xn (A048719)

congruent products between domains N and GF(2)[X], 5*n = 5Xn (A048716), 7*n = 7Xn (A048715), 7*n = 11Xn (A115770)

congruent products between domains N and GF(2)[X], 9*n = 9Xn (A115845), 9*n = 25Xn (A115801), 9*n = 25Xn, but 17*n is not 49Xn (A115811)

congruent products between domains N and GF(2)[X], 11*n = 31Xn (A115803), 13*n = 21Xn (A115772), 13*n = 29Xn (A115805)

congruent products between domains N and GF(2)[X], 15*n = 15Xn (A048718), 15*n = 23Xn (A115774), 15*n = 27Xn (A115807)

congruent products between domains N and GF(2)[X], 17*n = 17Xn (A115847), 17*n = 49Xn (A115809), 19*n = 55Xn (A115874)

congruent products between domains N and GF(2)[X], 21*n = 21Xn (A115422), 31*n = 31Xn (A115423), 33*n = 33Xn (A114086)

congruent products between domains N and GF(2)[X], 41*n = 105Xn (A115876), 49*n = 81Xn (A114384), 57*n = 73Xn (A114386)

congruent products between domains N and GF(2)[X], 63*n = 63Xn (A115424)

congruent products between domains N and GF(2)[X], array of solutions for n*k = A065621(n) X k: A115872

congruent products between domains N and GF(2)[X], see also A115857, A115871

congruent products between domains N and GF(2)[X]: see also congruent products under XOR

congruent products under XOR , sequences defined by :

congruent products under XOR, 3*n = 2*n XOR n (A003714), 5*n = 4*n XOR n (A048716), 5*n = 3*n XOR 2*n (A115767)

congruent products under XOR, 7*n = 6*n XOR n (A048715), 7*n = 5*n XOR 2*n (A115813), 7*n = 4*n XOR 3*n (A048715)

congruent products under XOR, 11*n = 10*n XOR n (A115793), 11*n = 9*n XOR 2*n (A115795), 11*n = 8*n XOR 3*n (A115797)

congruent products under XOR, 11*n = 7*n XOR 4*n (A115799), 11*n = 6*n XOR 5*n (A115827), 15*n = 14*n XOR n (A048718)

congruent products under XOR, 17*n = 16*n XOR n (A115847), 17*n = 13*n XOR 4*n (A115817), 19*n = 15*n XOR 4*n (A115819)

congruent products under XOR, 21*n = 20*n XOR n (A115422), 21*n = 15*n XOR 6*n (A115821), 21*n = 11*n XOR 10*n (A115829)

congruent products under XOR, 23*n = 13*n XOR 8*n (A115823), 25*n = 16*n XOR 9*n (A115831), 33*n = 17*n XOR 16*n (A115833)

congruent products under XOR, 31*n = 30*n XOR n (A115423), 33*n = 32*n XOR n (A114086), 63*n = 62*n XOR n (A115424)

congruent products under XOR, 9*n = 8*n XOR n (A115845), 9*n = 7*n XOR 2*n (A115815)

congruent products under XOR, least k such that n XOR n*2^k = n*(2^k + 1), A116361

congruent products under XOR: see also congruent products between domains N and GF(2)[X]

conjecture, sequences related to various conjectures :

conjecture, curling number: A094004

conjectured formulas: see A005158, A005160, A005162, A005163, A005164 (there are conjectured formulas for these sequences which may still be open problems)

conjectured sequences (00): The following sequences contain one or more terms that are only conjectured values

conjectured sequences (01): In some cases the conjectured terms are only mentioned in the comments

conjectured sequences (02): This list was last revised Jun 19 2008. It is surely incomplete, and by the time you look at them their status may have changed

conjectured sequences (03): Suggestions for additions to or deletions from this list will be welcomed - njas(AT)research.att.com

conjectured sequences (04): A008892, A098007, A063769 and other sequences related to the "aliquot divisors" problem

conjectured sequences (05): A065083, A090315, A104885, A121091, A051346, A115016

conjectured sequences (06): A075788, A075789, A075790, A075791, A083435, A086548, A087318, A087319, A088126, A090315, A092959

conjectured sequences (07): A000373, A002149, A014595, A014596, A019450, A019459, A020999,

conjectured sequences (08): A022495-A022498, A023054, A023108, A038552, A046125, A052131,

conjectured sequences (09): A066426, A066435, A066450, A066510, A066746, A066817, A067579,

conjectured sequences (10): A068591, A071071, A071887, A072023, A072326, A072540, A074980,

conjectured sequences (11): A074981, A078693, A078754, A078869, A079098, A079398, A079611,

conjectured sequences (12): A080131, A080133, A080134, A080761, A080762, A085508, A086058,

conjectured sequences (13): A086748, A087092, A088910, A091305, A092372-A092382, A096340,

conjectured sequences (14): A098860, A099118, A099119, A105233, A105600, A105601, A108795,

conjectured sequences (15): A110000, A110108, A110172, A110222, A110223, A110312, A110356,

conjectured sequences (16): A112647, A112799, A112826, A118278-A118285, A120414*, A121069,

conjectured sequences (17): A121346, A121507, A121508, A119479, A009287, A090997, A090987,

conjectured sequences (18): A004137, A048873, A056287, A059813, A059817, A059818, A065106, A065107, A081082, A084619, A090659, A099260, A117342,

conjectured sequences (19): A000954, A000974, A007008 (?), A023189-A023193, A036462-A036463, A037018, A039508, A039515, A051522, A056636, A076853, A105170, A118371

conjectured sequences (20): A080803, A124484, A093486, A140394, A007323

conjectures: see also Artin's conjecture

conjectures: see also Catalan's conjecture

conjectures: see also Chvatal conjecture

conjectures: see also complete graph conjecture

conjectures: see also curling number conjecture

conjectures: see also Gilbreath's conjecture

conjectures: see also Goldbach conjecture

conjectures: see also Heawood conjecture

conjectures: see also Kummer's conjecture

conjectures: see also Legendre's conjecture

conjectures: see also Mertens's conjecture

conjectures: see also permutations of the integers, conjectured

conjectures: see also Polya's conjecture

conjectures: see also sequences that need extending

conjugacy classes of groups: see groups, conjugacy classes

Conn, Herb, sums involving 1/binomial(2n,n): A098830+A181334+A185585, A014307+A180875, A181374+A185672

connect the dots: A187679

connected regular graphs, see graphs, regular connected

connecting 2n points: A006605

Connell sequence: A001614*

Consecutive:: A002308, A001223, A007610, A002307, A007513, A000236, A007667, A006889, A001033, A006055

Consistent:: A005779, A001225

constants, decimal expansion of: e A001113, gamma A001620, golden ratio A001622, pi A000796, silver mean A014176

constants, Robbins constant: A073012

constant sequences: see recurrence, linear, order 01, (1)

constructing numbers from other numbers and the operations of addition, subtraction, etc: see under four 4's problem

contexts: A047684

CONTINUANT transform: see Transforms file

continuant: A072347

continued cotangents, sequences related to :

continued cotangents:: A002668, A006266, A006268, A002667, A006267, A002666, A006269

continued fractions , sequences related to :

continued fractions (1):: A003285, A006466, A002951, A003417, A002852, A002211, A006083, A006839, A002947, A002948

continued fractions (2):: A002946, A001685, A001686, A004200, A002665, A006271, A001684, A006085, A002945, A007515

continued fractions (3):: A002937, A001112, A006464, A003118, A001203, A006273, A006270, A002949, A006467, A003117

continued fractions (4):: A006221, A002950, A001204, A006084, A005483, A006518, A005147, A006272, A006274, A005146, A006465

continued fractions for constants: (2/Pi)*Integral(sin(x)/x, x=0..Pi) (A036791), 0.12112111211112... A042974 (A056030) Product_{k>=1} (1-1/2^k) (A048652)

continued fractions for constants: 2^(1/2) etc.: see below under: continued fractions for constants: square roots of 2, etc.

continued fractions for constants: 2^(1/3) (A002945), 3^(1/3) (A002946), 4^(1/3) (A002947), 5^(1/3) (A002948), 6^(1/3) (A002949), 7^(1/3) (A005483), cube root of non-cubes 9+n to 100 (A010239, A010240, etc)

continued fractions for constants: 2^(1/3)+sqrt(3) (A039923), BesselK(1,2)/BesselK(0,2) (A051149), Catalan's constant (A014538)

continued fractions for constants: 2^(1/5) (A002950), 3^(1/5) (A003117), 4^(1/5) (A003118), 5^(1/5) (A002951)

continued fractions for constants: Champernowne (A030167), Conway's (A014967), Copeland-Erdos (A030168), Euler's gamma (A002852)

continued fractions for constants: e (A003417), e/2 (A006083), e/3 (A006084), e/4 (A006085), e^2 (A001204), e^3 (A058282)

continued fractions for constants: e^Pi (A058287), e^pi - pi (A018939), (e+1)/3 (A028360), (e-1)/(e+1) (A016825), i^i = exp(-Pi/2) (A049007)

continued fractions for constants: Fransen-Robinson (A046943), GAMMA(1/3) (A030651), GAMMA(2/3) (A030652), Integral(sin(x)/x, x=0..Pi) (A036790)

continued fractions for constants: golden ratio (A000012)

continued fractions for constants: Khintchine's (A002211), LambertW(1) (A030179), Lehmer's (A002665), Liouville's A012245 (A058304), Niven's (A033151)

continued fractions for constants: ln(2+n) to ln(100) (A016730+n), ln((2n+1)/2) to ln(99/2) (A016528+n)

continued fractions for constants: M(1,sqrt(2)) (A053003), 1 / M(1,sqrt(2)) (A053002), 1 +1/(e +1/(e^2 +..)) (A055972), 2*cos(2*Pi/7) (A039921)

continued fractions for constants: Otter's rooted tree A000081 (A051492), Thue-Morse (A014572), Tribonacci constant (A019712, A058296)

continued fractions for constants: Pi (A001203), 2 Pi (A058291), Pi/2 (A053300), Pi^2 (A058284), Pi^e (A058288), pi+e (A058651)

continued fractions for constants: sqrt(2Pi) (A058293), sqrt(Pi) (A058280), sqrt(e) (A058281)

continued fractions for constants: sqrt(3) - 1: A134451, A048878/A002530

continued fractions for constants: sqrt(3): A040001, A002531/A002530

continued fractions for constants: square roots of 17 (A040012), 18 (A040013), 19 (A010124), 20 (A040015), 21 (A010125), 22 (A010126), 23 (A010127), 24 (A040019), 26 (A040020), 27 (A040021), 28 (A040022), 29 (A010128),

continued fractions for constants: square roots of 2 (A040000 and A001333/A000129), 3 (A040001), 5 (A040002), 6 (A040003), 7 (A010121), 8 (A040005), 10 (A040006), 11 (A040007), 12 (A040008), 13 (A010122), 14 (A010123), 15 (A040011),

continued fractions for constants: square roots of 30 (A040024), 31 (A010129), 32 (A010130), 33 (A010131), 34 (A010132), 35 (A040029), 37 (A040030), 38 (A040031), 39 (A040032), 40 (A040033), 41 (A010133), 42 (A040035),

continued fractions for constants: square roots of 43 (A010134), 44 (A040037), 45 (A010135), 46 (A010136), 47 (A010137), 48 (A040041), 50 (A040042), 51 (A040043), 52 (A010138), 53 (A010139), 54 (A010140), 55 (A010141),

continued fractions for constants: square roots of 56 (A040048), 57 (A010142), 58 (A010143), 59 (A010144), 60 (A040052), 61 (A010145), 62 (A010146), 63 (A040055), 65 (A040056), 66 (A040057), 67 (A010147), 68 (A040059),

continued fractions for constants: square roots of 69 (A010148), 70 (A010149), 71 (A010150), 72 (A040063), 73 (A010151), 74 (A010152), 75 (A010153), 76 (A010154), 77 (A010155), 78 (A010156), 79 (A010157), 80 (A040071),

continued fractions for constants: square roots of 82 (A040072), 83 (A040073), 84 (A040074), 85 (A010158), 86 (A010159), 87 (A040077), 88 (A010160), 89 (A010161), 90 (A040080), 91 (A010162), 92 (A010163), 93 (A010164),

continued fractions for constants: square roots of 94 (A010165), 95 (A010166), 96 (A010167), 97 (A010168), 98 (A010169), 99 (A010170), etc. (square roots of numbers bigger than 100 have been omitted)

continued fractions for constants: Sum_{n>=0} 1/2^(2^n) (A007400), Sum_{k>=2} 2^(-Fibonacci(k)) (A006518), Sum_{m>=0} 1/(2^2^m - 1) (A048650)

continued fractions for constants: tan(1) (A009001), tan(1/n) n=2 to 10 (A019423+n)

continued fractions for constants: Trott's (A039663), Wallis' number (A058297), Wirsing's (A007515), prime constant (A051007), root of x^5-x-1 (A039922)

continued fractions for constants: zeta(2) = Pi^2/6 (A013679), zeta(3) (A013631), zeta(4) (A013680)

continued fractions, for sqrt(n), length of period: A003285*, A097853

contours: A006021

convenient numbers: A000926

conventions in OEIS: see spelling and notation

convergents , sequences related to :

convergents (1):: A002363, A007676, A002356, A005663, A006279, A002355, A005664, A002358, A002795, A002353, A002360, A007509, A005484, A002364

convergents (2):: A007677, A002351, A002357, A002354, A002794, A001517, A002485, A002352, A002359, A002361, A005668, A002362, A002119, A002486, A005485

convert from base 10 to base n (or vice versa): A006937 A023372 A023378 A023383 A023387 A023390 A008557 A023392 A010692

convert from decimal to binary: A006937, A006938

convex lattice polygons: A063984, A070911, A089187

convolution , sequences related to :

convolution of natural numbers :: A007466

convolution of triangular numbers :: A007465

Convolutional codes:: A007223, A007224, A007225, A007227, A007226, A007228, A007229

Convolutions:: A007477, A006013, A001938, A000385, A005798, A007556

Convolved Fibonacci numbers:: A001629, A001628, A001872, A001873, A001874, A001875

Conway , sequences related to :

Conway group Con.0: A008924

Conway sequences:: A007012, A004001, A005940, A005941, A003681, A007542, A007471, A003634, A007547, A003635

Conway, sequences made famous by: A004001*, A005150*

Conway-Guy rapidly growing sequence: A046859

Conway-Guy sequence: A005318*, A006755, A005318, A006754, A006756, A006757

coordination sequences, sequences related to :

coordination sequences: for A_n root lattices: A005901, A008383, A008385, A008387, A008389, A008391, A008393, A008395, and A035837 through A035876

coordination sequences: for B_n root lattices: A022144 through A022154, A107546 through A107571, and A108000 through A108011

coordination sequences: for C_n root lattices: A010006, A019560 through A019564, and A035746 through A035787

coordination sequences: for D_n root lattices: A005901, A007900, A008355, A008357, A008359, A008361, A008376, A008378, and A107506 through A107545

coordination sequences: see also crystal ball sequences

coordination sequences: see also under names of individual lattices

Coprime sequences:: A003139, A003140, A002716, A002715

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Cor

core partitions: t-core partitions for t=1..12: A177595 (triangle), A010054, A033687, A045831, A053723, A081622, A053724, A182803, A182804, A182805, A053691, A192061

core sequences :

core sequences, (01): A000001 (groups), A000002 (Kolakoski), A000004 (0's), A000005 (divisors), A000007 (0^n), A000009 (distinct partitions), A000010 (totient), A000012 (1's), A000014 (series-reduced trees), A000019 (prim. perm. groups), A000027 (natural numbers), A000029 (necklaces), A000031 (necklaces), A000032 (Lucas), A000035 (0101...)

core sequences, (02): A000040 (primes), A000041 (partitions), A000043 (Mersenne), A000045 (Fibonacci), A001519 and A001906 (Fibonacci bisections), A000048 (necklaces), A000055 (trees), A000058 (Sylvester), A000069 (odious), A000079 (2^n), A000081 (rooted trees), A000085 (self-inverse perms.), A000088 (graphs), A000105 (polyominoes), A000108 (Catalan), A000109 (polyhedra)

core sequences, (03): A000110 (Bell), A000111 (Euler), A000112 (posets), A000120 (1's in n), A000123 (binary partitions), A000124 (Lazy Caterer), A000129 (Pell), A000140 (Kendall-Mann), A000142 (n!), A000161 (partitions into 2 squares), A000166 (derangements), A000169 (labeled rooted trees)

core sequences, (04): A000182 (tangent), A000203 (sigma), A000204 (Lucas), A000217 (triangular), A000219 (planar partitions), A000225 (2^n-1), A000244 (3^n), A000262 (sets of lists), A000272 (n^(n-2)), A000273 (directed graphs), A000290 (n^2), A000292 (tetrahedral)

core sequences, (06): A000688 (abelian groups), A000720 (pi(n)), A000793 (Landau), A000796 (Pi), A000798 (quasi-orders or topologies), A000961 (prime powers), A000984 (binomial(2n,n)), A001003 (Schroeder's second problem), A001006 (Motzkin), A001037 (irreducible polynomials), A001045 (Jacobsthal), A001065 (sum of divisors), A001113 (e), A001147 (double factorials), A001157 (sum of squares of divisors), A001190 (Wedderburn-Etherington), A001221 (omega), A001222 (Omega), A001227 (odd divisors), A001285 (Thue-Morse), A001333 (sqrt(2))

core sequences, (07): A001349 (connected graphs), A001358 (semiprimes), A001405 (binomial(n,n/2)), A001462 (Golomb), A001477 (integers), A001478 (negatives), A001481 (sums of 2 squares), A001489 (negatives), A001511 (ruler function), A001615 (sublattices), A001699 (binary trees), A001700 (binomial(2n+1, n+1)), A001764 (C3n,n)/(2n+1)), A001969 (evil), A002033 (perfect partitions), A002083 (Narayana-Zidek-Capell), A002106 (transitive perm. groups), A002110 (primorials), A002113 (palindromes), A002275 (repunits)

core sequences, (08): A002322 (psi), A002378 (pronic), A002426 (central trinomial coefficients), A002487 (Stern), A002530 (sqrt(3)), A002531 (sqrt(3)), A002572 (binary rooted trees), A002620 (quarter-squares), A002654 (re: sums of squares), A002658 (3-trees), A002808 (composites), A003136 (Loeschian), A003418 (LCM), A003484 (Hurwitz-Radon), A004011 (D_4), A004018 (square lattice)

core sequences, (09): A004526 (ints repeated), A005036 (dissections), A005100 (deficient), A005101 (abundant), A005117 (squarefree), A005130 (Robbins), A005230 (Stern), A005408 (odd), A005470 (planar graphs), A005588 (binary rooted trees), A005811 (runs in n), A005843 (even), A006318 (royal paths or Schroeder numbers), A006530 (largest prime factor)

core sequences, (10): A006882 (n!!), A006894 (3-trees), A006966 (lattices), A007318 (Pascal's triangle), A008275 (Stirling 1), A008277 (Stirling 2), A008279 (permutations k at a time), A008292 (Eulerian), A008683 (Moebius), A010060 (Thue-Morse), A018252 (nonprimes), A020639 (smallest prime factor), A020652 (fractal), A020653 (fractal), A027641 (Bernoulli), A027642 (Bernoulli), A035099 (j_2), A038566 (fractal), A038567 (fractal), A038568 (fractal), A038569 (fractal), A049310 (Chebyshev)

core sequences, (11): A070939 (binary length), A074206 (ordered factorizations), A104725 (complementing systems)

corners: A006330, A006332, A006333, A006334

correlations, sequences related to :

correlations: A005434

correlations: see also (1) A006606 A010559 A010560 A010561 A010562 A010563 A010564 A010565 A045690 A045691 A045692 A045693

correlations: see also (2) A045694 A045695 A045696 A045697 A053043

cos(nx), sequences related to cos(x) etc. :

cos(nx): A028297 (table)

cos(x):: A001250, A003701, A000795, A005766, A003703, A005647, A005046, A002084, A003709, A003728, A003710, A002085, A003711

cosec(x), Taylor series for: A036280*/A036281*, A001896*/A001897*

cosecant numbers: see cosec(x)

cosh x / cos x, Taylor series for: A000795*, A005647

cosh(x):: A002459, A003727, A003719, A003700, A003702

Costas arrays: A008404*, A001440*, A001441*, A001442, A008403

cot(x), Taylor series for: A002431*/A036278*

cotangent numbers: A002431*/A036278*

Cotes numbers: are called Cotesian numbers in OEIS

Cotesian numbers, sequences related to :

Cotesian numbers: A100640/A100641, A100640/A100641, A100643/A100644, A100645/A100646, A100647/A100648, A002176, A002177, A002178, A002179

cototient(n): A051953

counter moving puzzle: A004138

counting numbers: A000027*

covering codes: see codes, covering

covering designs: see covering numbers

covering numbers , sequences related to :

covering numbers, C(v,k,t) is the smallest number of k-subsets of an n-set such that every t-subset is contained in at least one of the k-subsets

covering numbers: (1) A011975 A011976 A011977 A011978 A011979 A011980 A011981 A011982 A011983 A011984 A011985 A011986

covering numbers: (2) A011987 A011988 A011989 A011990 A066009 A066010 A066011 A066019 A066040 A066041 A066137 A066140

covering numbers: (3) A066225 A066701

covering numbers: 2-covers: A002620, A002718, A020554, A014500, A057963, A060053, A146563

covering numbers: on-line tables of: La Jolla Repository of Coverings

covering radius of codes: see codes, covering

covers of an n-set , sequences related to :

covers of an n-set (1): A000371*, A003465*, A007537*, A035348*, A046165*, A049055*, A049056*, A055080*

covers of an n-set (2): A005771, A005744, A005745, A005746, A005747, A005748, A005783, A005784, A005785, A005786, A055066, A003465

covers of an n-set (3): A003467, A003468, A003469, A003486

Coxeter-Todd 12-dimensional lattice: see K12 lattice

Critical exponents:: A007181, A007180

Croatian: A056597

Croatian: see also Index entries for sequences related to number of letters in n

crossing , sequences related to :

crossing a road: A005315*

crossing a road: see also meanders

crossing number, rectlinear: A014540

crossing numbers of graphs: A000241*, A007333, A014540, A030179

crystal ball sequences , sequences related to :

crystal ball sequences: (1) A001360 A001361 A001845 A001846 A001847 A001848 A001849 A003215 A005891 A005902 A007202 A007204

crystal ball sequences: (2) A007904 A008349 A008356 A008358 A008360 A008362 A008377 A008379 A008384 A008386 A008388 A008390

crystal ball sequences: (3) A008392 A008394 A008396 A008398 A008400 A008402 A008417 A008419 A008421 A008577 A008580 A008922

crystal ball sequences: (4) A010025

Crystal classes:: A004028, A004027, A004032, A004031

crystallographic groups: see groups, crystallographic

crystobalite lattice: A005392

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Cu

cube , sequences related to "cube" :

cube numbers, centered: A005898*

Cube roots:: A002580, A002581, A005480, A005481, A005486, A005482

Cube with no 3 points collinear:: A003142

cube, coloring a: see coloring a cube

cube, triangulations of: A019502, A019503, A019504, A166932

cube, truncated: see truncated cube

cube-free , sequences related to :

cube-free divisors: A073184

cube-free numbers: A004709*, complement is A046099

cube-free word: A010060*

cube-free words: A028445*, A051042, A051043. See also A135491, A170977

cubes, Latin, see Latin squares

cubes, not the sum of: A001476, A022555, A022561, A022566, A057903, A057904, A057905, A057906, A057907

cubes, not the sum of: see also A031980, A031981, A022550, A014156, A022557, A022552, A014158

cubes, see also: difference of two cubes

cubes, sums of, see also under sums of cubes

cubes: A000578*

Cubes:: A002376, A005897, A006529

Cubic curves:: A005782

Cubic fields:: A005472, A006832

cubic graphs, see graphs, trivalent

cubic lattice , sequences related to :

cubic lattice, (1):: A003196, A003193, A002929, A005876, A003301, A007217, A003283, A003490, A006837, A006804, A002891, A006810, A002902, A001393

cubic lattice, (2):: A006783, A001409, A002916, A002915, A005877, A000759, A005572, A002917, A007287, A005573, A005875, A006779, A003496, A006780

cubic lattice, (3):: A003211, A002934, A003279, A002913, A001412, A006819, A007193, A007194, A002918, A002170, A002896, A003299, A003282, A000605

cubic lattice, (4):: A006193, A004013, A005878, A000760, A002169, A003302, A003280, A003303, A003207, A003284, A001408, A004015, A002926, A000761

cubic lattice, (5):: A000762, A005570, A003300, A002165, A003298, A003281, A001413, A005571

cubic lattice, coordination sequence for: A005899*

cubic lattice, polygons on: A001413*

cubic lattice, theta series of: A005875*

cubic lattice, walks on: A001412*

cuboctahedral numbers: A005901, A005902

Cullen , sequences related to :

Cullen numbers, n*2^n + 1: A002064*

Cullen primes: see primes, Cullen

curling number , sequences related to :

curling number conjecture: A094004*, A116909, A161223

curling number transform: A090822, A093914, A093921, A094840, A094916

curling number transform: see also Gijswijt's sequence

curves, rational plane: A013587

cusp forms, sequences related to :

cusp forms, for full modular group, of weights 12, 16, 18, 20, 22, 26: A000594, A027364, A037944, A037945, A037946, A037947

cusp forms: (1) A002288 A002408 A003784 A003785 A006354 A006571 A007331 A007332 A007653 A013953 A013975

cusp forms: (2) A027859 A035118 A035150 A035190 A037948 A037949 A037950 A054891

cusp forms: (3) A055749 A055978 A056945 A056947

cusps, number of: A000114, A029936

cutting center: A002887

cutting numbers: A002888

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Cy

cycle index , sequences related to :

cycle index in Maple: see A036658;

cycle index of representations of groups: A000292 (D_6); A002817 (D_8); A006008 (A_4); A000389, A063843 (S_5); A000543, A047780, A060530 (group of cube)

cycle index of symmetric group S_n for n = 1..27 in Maple: see link in A000142;

Cycles in x -> x^2 mod n: A023153

cyclic group: see groups, cyclic

cyclic numbers: A003277*, A001914, A001913

Cyclic:: A002885, A007039, A006205, A007040, A006609, A002956, A005666, A006204, A007687, A007688, A005665, A000804, A000805

cyclotomic cosets: A064285, A064286, A064287

cyclotomic fields, sequences related to :

cyclotomic fields, class numbers of: A000927 (first factor h-), A055513 (class number h), A061653, A035115

cyclotomic fields, with class number 1: A005848

cyclotomic polynomials, sequences related to :

cyclotomic polynomials, largest coefficient of: A013594*, A046887

cyclotomic polynomials, positions of coefficients, sequences related to :

cyclotomic polynomials, positions of coefficients: A063696, A063697, A063698, A063699, A063670, A063671

cyclotomic polynomials, triangle of coefficients of: A013595*, A013596*

cyclotomic polynomials, values at phi , sequences related to :

cyclotomic polynomials, values at phi = (sqrt(5)+1)/2: A063703, A063705, A063707

cyclotomic polynomials, values at x = integers, sequences related to :

cyclotomic polynomials, values at x = -1 to -13: A020513, A020501, A020502, A020503, A020504, A020505, A020506, A020507, A020508, A020509, A020510, A020511, A020512

cyclotomic polynomials, values at x = 1 to 13: A020500, A019320, A019321, A019322, A019323, A019324, A019325, A019326, A019327, A019328, A019329, A019330, A019331

cyclotomic polynomials, values at x = 2^n: A070526, A070527

cyclotomic polynomials, values at x = EulerPhi(n): A070524, A070525

cyclotomic polynomials, values at x = n: A070518, A070519, A070520, A070521

cyclotomic polynomials, values at x = prime(n): A070522, A070523

cyclotomic polynomials, values of (1): A000027 A002061 A002522 A053699 A053716 A002523 A060883 A060884 A060885 A060886 A060887

cyclotomic polynomials, values of (2): A060888 A060889 A060890 A060891 A060892 A060893 A060894 A060895 A060896

cyclotomic polynomials: see also polynomials, cyclotomic

cylinder, kings on a: A002493

Czech: see also Index entries for sequences related to number of letters in n

C[n,k]: binomial coefficient n-choose-k (see A007318)

C_n lattice: coordination sequence for: see A010006

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Da

d(n), number of divisors: A000005*

d(n), number of divisors: records: A002183, A002182

d(n), see also divisors

D3 lattice: see f.c.c. lattice

D3* lattice: see b.c.c. lattice

D4 lattice, sequences related to :

D4 lattice, home page for

D4 lattice, coordination sequence for: A007900*, A010079

D4 lattice, crystal ball sequence for: A007204*

D4 lattice, theta series of: A004011*, A005879, A005880, A046949, A108092 (fourth root)

D4 lattice: see also A008369 A008658 A008659 A008660 A008661 A008662 A010367 A010561 A010562 A010565 A028977 A031360 A033692 A033696 A045771 A117216

D5 lattice, theta series of: A005930*

DAGs: A003087* (labeled), A003024 (labeled)

Danish: A003078

Danish: see also Index entries for sequences related to number of letters in n

dartboard: see darts board

darts board: A003833, A008575, A104158, A104159

dates: see calendar

Davenport-Schinzel numbers:: A005004, A005005, A002004, A005006, A005280, A005281

David, J.-P., A118131

Dawson's chess: A002187*

days: see calendar

de Bruijn sequences: A080679, A058342, A083570, A135472, A144569, A166315, A166316

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_De

decagon is spelled 10-gon in the OEIS

deceptive plots, sequences related to :

deceptive plots: A014612, A034598, A034415, A001358 (semiprimes)

decimal encoding of prime factorization: A037276, A067599, A080670

Decimal equivalent:: A003100, A003188

decimal expansion , sequences related to :

decimal expansion contains no 0's: A007377, A007496

decimal expansion of square roots: see under: square root(s)

decimal expansions (1):: A002117, A007493, A002163, A002392, A007377, A007496, A005532, A006891, A002580, A007507, A002210, A001113, A003678, A000796

decimal expansions (2):: A005533, A005600, A005596, A006834, A005534, A002193, A002285, A002581, A007525, A006890, A005531, A003671, A003672, A002389

decimal expansions (3):: A001620, A005480, A007450, A001622, A005597, A003676, A002162, A005481, A003677, A003673, A002194, A002161, A005486, A005601

decimal expansions (4):: A006833, A003675, A005482, A006752, A002391, A002388

decimal expansions - see also under individual constants (e, A001113; Pi, A000796; etc.)

Decompositions:: A002850, A002126, A001031, A002372

Dedekind , sequences related to :

Dedekind psi function: A001615

Dedekind psi function, higher order : A065958, A065959, A065960

Dedekind's function eta(x): A010815*, A007706*

Dedekind's function eta(x): see also under eta(x)

Dedekind's problem (or numbers): A000372*, A003182*, A007153*

Dedekind's problem: see also Boolean functions, monotone

deficiency , sequences related to :

deficiency: A033879*, A033880, A033883

deficiency: see also abundancy

deficient numbers: A005100*, A006039

Deficit:: A005675

Definite integrals:: A002571, A002570

Degree sequences:: A007020, A005155

degrees of irreducible representations, sequences related to :

degrees of irreducible representations: (1) A003875*, A003869, A003870, A003871, A003872, A003873, A003874, A003876, A003877, A059796

degrees of irreducible representations: (2) A079685, A108942, A003880, A152465, A152481, A003884, A152486, A003856, ...

degrees of irreducible representations: see also alternating group

degrees of irreducible representations: see also symmetric group

Delannoy numbers, sequences related to :

Delannoy numbers, central: A001850*

Delannoy numbers, table of: A008288*

Delaunay (or Delone) decompositions: A070881, A070882

Deleham's operator DELTA: A084938

DELTA operator: A084938

DEMICHEL, Patrick, sequences received in May 1996 from: A012001-A013573 (except for a few gaps). See especially A013538.

Demlo numbers, sequences related to :

Demlo numbers: A002477*

Demlo numbers: see also (1) A002275 A063750 A075411 A075412 A075413 A075414 A075415 A075416 A075417 A080150 A080151 A080160

Demlo numbers: see also (2) A080161 A080162

denumerants: A000115*

derangements: A000166*

derivative of n: A038554*, A003415*

Derivatives:: A005168, A005727, A003262

descending dungeons: see dungeons

describe n: see "say what you see"

describe previous term!: A005150*

describe previous term: see "say what you see"

Describe previous term:: A005341, A006751, A006715, A006919, A007651, A006711

designs, covering: see covering numbers

designs, spherical: see spherical designs

destinies: see destiny

destiny: if a map f is applied repeatedly to n, the destiny of n is the smallest number in the resulting trajectory

destiny: see AA161590, A161592, A161593

determinants, sequences related to :

determinants:: A003116, A002771, A002772, A001332, A002776, A002204, A006377, A005249

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Di

Diagonal length function:: A006264

diagonal sequences, sequences related to :

diagonal sequences: A051070 = A_n(n) respecting the offset, A091967 = A_n(n) ignoring offset, A107357 = 1 + A_n(n) respecting offset, A102288 = 1 + A_n(n) ignoring offset

diagonal sequences: incorrect versions: A031135, A037181

diagonal sequences: see also paradoxical sequences

diagonal sequences: see also A102288, A100543, A039928

diagrams, circular: A007474

Diagrams:: A004300, A000699

Diameters:: A007285

diamond lattice, sequences related to :

diamond lattice, theta series of: A005925*

diamond lattice:: A005926, A002930, A001395, A005925, A003195, A007216, A005927, A003212, A003119, A001394, A002923, A001397, A001396, A002895, A002922, A003208, A003220, A001398

difference between next prime and previous prime for terms of various sequences: see under previous prime

Difference equations:: A005921, A005923, A005922, A005924

difference of two cubes , sequences related to :

difference of two cubes (01): A014439 A014440 A014441 A034179 A038593 A038594 A038595 A038596 A038597 A038598 A038632 A038673

difference of two cubes (02): A038808 A038847 A038848 A038849 A038850 A038851 A038852 A038853 A038854 A038855 A038856 A038857

difference of two cubes (03): A038858 A038859 A038860 A038861 A038862 A038863 A038864 A051393 A085367 A085377 A086121 A098110

difference of two cubes (04): A125063 A129965 A087786 A045980 A085479 A152043

differences = complement: A005228*, A030124

differences of 0, sequences related to :

differences of 0: A000919 A000920 A001117 A001118 A002051 A002456 A019538

Differences of reciprocals of unity:: A000424, A001240, A001236, A001237, A001241, A001238, A001242

differences of two cubes, see difference of two cubes

differences of zero, see differences of 0

Differences periodic:: A002081

differential equations, sequences related to :

differential equations:: A000997, A000995, A000994, A000996, A005443, A000998, A005444, A005442, A005445

differential structures: A001676*

digital , sequences related to digital root, sum, etc. :

digital root: A010888*

digital root: number of n-digit numbers with nonzero multiplicative digital root A051812, A051813, A051814, A051815, A051816, A051817, A051818, A051819, A051820

digital root: number of n-digit numbers with zero multiplicative digital root A051821, A051822, A051823, A051824, A051825, A051826, A051827, A051828, A051829

digital root: numbers with multiplicative digital root A034048, A034049, A034050, A034051, A034052, A034053, A034054, A034055, A034056

digital root: numbers with nonzero multiplicative digital root A051803, A051804, A051805, A051806, A051807, A051808, A051809, A051810, A051811

digital root: see also A007612

digital sum: A007953*

digital sum: see also sum of digits (main entry)

digits, final: see final digits

digits, last: see final digits

digits, sums of squares of: A003132

digraphs (or directed graphs), sequences related to :

digraphs : A000273* (unlabeled), A053763* (labeled)

digraphs, 2-regular, A007107, A007108

digraphs, acyclic: A003087 (unlabeled), A003024 (labeled), A082402 (connected labeled)

digraphs, acyclic: by number of out-points: A003025, A003026

digraphs, connected: A003085*

digraphs, Eulerian, A007080, A007105

digraphs, mating, A006023, A006025

digraphs, regular, A005641, A005642

digraphs, see also A003028, A003084

digraphs, self-complementary, A003086

digraphs, self-converse, A002499

digraphs, semi-regular, A003286, A005535

digraphs, strongly connected, A003030 (labeled), A035512 (unlabeled); see also A054946 (tournaments)

digraphs, subgraphs of, A005014, A005016, A005327, A005328, A005329, A005330, A005331, A005332

digraphs, switching classes of: A006536*

digraphs, transitive: A000798* (labeled), A001930* (unlabeled)

digraphs, triangle of numbers of: (1) A052296 A054733 A057270 A057271 A057272 A057273 A057274 A057275 A057276 A057277 A057278 A057279

digraphs, triangle of numbers of: (2) A058876

digraphs, unilateral, A003029, A003088

digraphs, weakly connected, A003027

digraphs, weakly distance-regular: A057560

digraphs, with same converse as complement, A003069

digsum: A007953

digsum: see also sum of digits (main entry)

Dimensions:: A007478, A007473, A007182, A006973, A007293, A003038, A001776

Diophantine equations, x1 x2 + x2 x3 + ... + xk x{k+1} = n: A000005, A065608, A002133, A189835, A191822, A191832

Diophantine equations: see also Pellian equation

Diophantine equations:: A006452, A006451, A006454

Dirac delta function: A000007*

directed graphs, see digraphs

Diregular:: A005642, A005641

Dirichlet divisor problem: A006218

Dirichlet series: sequences related to :

Dirichlet series: PARI examples: (01) A031358 A145390

Dirichlet series: PARI examples: (02) A000005 A000082 A000086 A000203 A000377 A001157 A001227 A001615 A002131 A002654 A003958 A003959

Dirichlet series: PARI examples: (03) A007425 A007427 A007429 A007430 A007431 A008683 A003421 A003420 A003419 A002558 A003521

discordant, sequences related to :

discordant:: A002634, A000183, A002633, A000270, A000380, A000388, A000561, A000440, A000562, A000470, A000563, A000476, A000492, A000564, A000500, A000565

discriminants , sequences related to :

discriminants of imaginary quadratic fields with class number (negated): (1) 1: A014602, 2: A014603, 3: A006203, 4: A013658, 5: A046002, 6: A046003, 7: A046004, 8: A046005, 9: A046006, 10: A046007, 11: A046008, 12: A046009, 13: A046010,

discriminants of imaginary quadratic fields with class number (negated): (2) 14: A046011, 15: A046012, 16: A046013, 17: A046014, 18: A046015, 19: A046016, 21: A046018, 23: A046020, 24: A048925, 25: A056987,

discriminants of imaginary quadratic fields, see also quadratic fields, imaginary

discriminants of real quadratic fields by class nunber: A050950-A050969, A051962-A051965

discriminants of real quadratic fields, see also quadratic fields, real

Discriminants:: A006555, A006554

Discriminants:: of fields, A003171, A003657, A003644, A003658, A003656, A003246, A003653, A006832, A002769

Discriminants:: of polynomials, A004124, A007701, A001782, A006312

Discriminants:: of quadratic forms, A003655

Disjunctive:: A003039, A005616, A005739

Disk:: A005497, A002710, A002712, A004305, A001683, A002713, A005495, A002711, A002709, A005499, A005498

dismal arithmetic , sequences related to :

dismal arithmetic : A087061 (addition), A087062 (multiplication, Maple code)

dismal arithmetic, base 2: A067398*, A190820, A191342 (squares), A067139 (primes), A048888

dismal arithmetic, base 3: A171396 (squares), A130206, A170806 and A191366 (primes)

dismal arithmetic, factorials: A189788

dismal arithmetic, in other bases, primes: A067139 A169912 A171000 A130206 A170806 A171017 A171122 A171123 A171124 A171125 A171133 A171143 A171144 A171167 A171168 A171169 A171221 A087097*, A087636, A087638, A084666

dismal arithmetic, in other bases, squares: A067398 A171222 A171234 A171396 A171458 A171460 A171558 A171564 A171578 A171591 A171594 A171596 A171635 A171644 A171679 A171717 A087019

dismal arithmetic, in other bases, triangular numbers: A003817 A171230 A171438 A171446 A171464 A171483 A171572 A171573 A171592 A171593 A171597 A171610 A171649 A171678 A171722 A171723 A087052

dismal arithmetic, partitions: A054244, A087079

dismal arithmetic, perfect numbers: see comment in A087416

dismal arithmetic, primes in various bases: A067139 A130206 A170806 A171017 A171122 A171123 A171124 A171125 A171133 A171143 A171144 A171167 A171168 A171169 A171221 A171750 A171752

dismal arithmetic, primes: A087097*, A087636, A087638, A084666

dismal arithmetic, square roots: A202082, A202174

dismal arithmetic, squares in various bases: A067398 A171222 A171234 A171396 A171458 A171460 A171558 A171564 A171578 A171591 A171594 A171596 A171635 A171644 A171679 A171717

dismal arithmetic, sum of divisors in various bases: A188548, A190632, A087416

dismal arithmetic: A087019 (squares), A087052 (triangulars), A087036 (cubes), A087051 (4th powers), A087028 and A087029 (divisors), A087079 (partitions), A087121, A087416, A087082 and A087083 (sum of divisors), A162672 or A171818 ("even" numbers)

dismal arithmetic: see also carryless arithmetic

dismal arithmetic: see also A087027 A088923 A088924 A087984 A011539

dismal arithmetic: see also A088469-A088481

dissections, sequences related to :

dissections, of a polygon (1):: A001004, A003455, A000063, A005036, A003456, A000131, A003450, A003454, A003452, A000150, A005034, A003447, A005040, A003445

dissections, of a polygon (2):: A003442, A005038, A000207, A003453, A003449, A003441, A001002, A003448, A005419, A003443, A003451, A003444, A005035, A002293

dissections, of a polygon (3):: A005039, A005033, A005037, A002295, A002296, A002055, A002056, A007160

dissections, of rectangles: A049021*

dissections, of regular polygons to regular polygons: A110000, A110312, A110316

dissections: A000207*

Dissections:: of a ball, A001763, A001762

Dissections:: of a disk, A001761

distinct prime factors, sequences related to :

distinct prime factors: at least 1: A000027 2: A024619 3: A000977

distinct prime factors: at most 1: A000961 2: A070915

distinct prime factors: exactly 1: A000961 2: A007774 3: A033992 4: A033993 5: A051270 6: A074969

distinct prime factors: number of A001221

distinct prime factors: see also prime factors

distinct prime factors: table of: A125666

Distribution problem:: A002018

divergent series: A002387, A092324, A092267, A092753

divisibility sequences , sequences related to :

divisibility sequences ( 1): A000522 A001339 A002248 A002452 A003757 A005013 A005120 A005178 A006238 A006720 A006769 A007434

divisibility sequences ( 2): A039834 A051138 A058939 A059928 A060478 A082030 A086892 A087612 A087612 A095000 A095177 A105309

divisibility sequences ( 3): A115000 A116201 A127595 A133394 A138573 A141827 A141828 A143699 A152090 A140824

divisibility sequences, 3rd order: A003690, Number of spanning trees in K_3 X P_n

divisibility sequences, 3rd order: A004146, Alternate Lucas numbers - 2

divisibility sequences, 3rd order: A005386, Area of n-th triple of squares around a triangle

divisibility sequences, 3rd order: A006253, Number of perfect matchings (or domino tilings) in C_4 X P_n

divisibility sequences, 3rd order: A007654, Numbers n such that standard deviation of 1,...,n is an integer

divisibility sequences, 4th order: A001350, Associated Mersenne numbers

divisibility sequences, 4th order: A002248, Number of points on y^2+xyA003773, Number of spanning trees in K_4 X P_n

divisibility sequences, 4th order: A006238, Complexity of (or spanning trees in) a 3 X n grid

divisibility sequences, 6th order: A001351, Associated Mersenne numbers

divisibility sequences, 6th order: A001945, a(n+6) A003755, Number of spanning trees in S_4 X P_n

divisibility sequences, 6th order: A005120, a(n+6) A006235, Complexity of doubled cycle

divisibility sequences, 8th order: A005822, Number of spanning trees in third power of cycle

divisibility sequences, 8th order: A028468, Number of perfect matchings in graph P_{6} X P_{n}

divisibility sequences: A001542 = 2 * (A001109)

divisibility sequences: A003645(n)=2^n*Cat(n+1)=A000079(n)*A000108(n+1)

divisibility sequences: A003690 = 3 * (A004254)^2

divisibility sequences: A003696 = (A001353) * (A161158)

divisibility sequences: A003733 = 5 * (A143699)^2

divisibility sequences: A003739 = 5 * (A001906)^2 * (A161159)

divisibility sequences: A003745 = 3 * 5^2 * (A004254) * (A004187)^3

divisibility sequences: A003751 = 5^3 * (A004187)^4

divisibility sequences: A003753 = 2^2 * (A001109) * (A001353)^2 = 2 * (A001542) * (A001353)^2

divisibility sequences: A003755 = (A001109) * (A001906)^2

divisibility sequences: A003761 = (A001906) * (A004254) * (A001109)

divisibility sequences: A003767 = 2^3 * (A001353) * (A001109)^2

divisibility sequences: A003773 = 2 * (A001542)^3 = 2^4 * (A001109)^3

divisibility sequences: A005159(n)=3^n*Cat(n), that is, A005159=A000244*A000108

divisibility sequences: A005319 = 4*A001109

divisibility sequences: A092136 = (A004187) * (A001906)^3

divisibility sequences: A106328 = 3*A001109

divisibility sequences: A139400 = (A001906) * (A001353) * (A004254) * (A161498)

divisible by each digit: A002796*, A034838*, A034709

divisible by product of digits: A007602*

divisor chains: A067957*, A093313, A093314, A093315, A094097, A094098, A094099

divisors, sequences related to :

divisors, aliquot: A032741*, A001065* (sum of), A027751 (list of)

divisors, anti: A066272

divisors, average of, A003601, A006218

divisors, inverse to d(n), A005179

divisors, isolated: A133779 (triangle), A132881 (number)

divisors, isolated: see also A133950, A134320

divisors, largest prime power: A053585

divisors, largest prime: A006530*

divisors, largest: A032742*

divisors, list of: A027750

divisors, middle: A067742*, A071090

divisors, nontrivial (or proper): A070824 (divisors of n in the range 1 < d < n), A137510

divisors, nontrivial: often used incorrectly to refer to aliquot divisors (see divisors, aliquot)

divisors, nontrivial: see also divisors, proper

divisors, number of (d(n)): see also (1): A002324, A002175, A002183, A002131, A005179 (inverse function to d(n)), A002132, A002133, A002134, A003680, A005237, A002130, A002191, A002127, A002128

divisors, number of (d(n)): see also (2): A002129, A002173, A000441, A002961, A000477, A000499

divisors, number of (denoted by d(n)): A000005*

divisors, numbers having 11-20: A030629, A030630, A030631, A030632, A030633, A030634, A030635, A030636, A030637, A030638

divisors, numbers having 2-10: A000040, A001248, A030513, A030514, A030515, A030516, A030626, A030627, A030628

divisors, numbers having 21-30: A137484, A137485, A137486, A137487, A137488, A137489, A137490, A137491, A137492, A137493

divisors, of 10^k-1 or 10^k or 10^k+1: (01) k=2 A018283, k=3 A018766 A018767 A018768, k=4 A027894 A133020,

divisors, of 10^k-1 or 10^k or 10^k+1: (02) k=5 A027893, k=6 A027892 A159765, k=7 A027891, k=8 A027890,

divisors, of 10^k-1 or 10^k or 10^k+1: (03) k=9 A027889 A027901, k=10 A027895 A027900, k=11 A027896 A027899,

divisors, of 10^k-1 or 10^k or 10^k+1: (04) k=12 A027897 A027898, k=13 A109933, k=14 A106305, k=15 A111117,

divisors, of 10^k-1 or 10^k or 10^k+1: (05) k=16 A111211, k=17 A113116, k=18 A113522

divisors, of 2^k-1: (01) k=6 A018267, k=8 A018358, k=10 A003523, k=12 A003524, k=14 A003525, k=15 A003526,

divisors, of 2^k-1: (02) k=16 A003527, k=18 A003528, k=20 A003529, k=21 A003530, k=22 A003531, k=24 A003532,

divisors, of 2^k-1: (03) k=25 A003533, k=26 A003534, k=27 A003535, k=28 A003536, k=29 A003537, k=30 A003538,

divisors, of 2^k-1: (04) k=32 A004729, k=33 A003540, k=34 A003541, k=35 A003542, k=36 A003543, k=38 A003544,

divisors, of 2^k-1: (05) k=39 A003545, k=40 A003546, k=42 A003547, k=43 A003548, k=44 A003549, k=45 A003550,

divisors, of numbers in range 200..299: (02) A018340, A018341, A018342, A018343, A018344, A018345, A018346, A018347,

divisors, of numbers in range 200..299: (03) A018348, A018349, A018350, A018351, A018352, A018353, A018354, A018355,

divisors, of numbers in range 200..299: (04) A018356, A018357, A018358, A018359, A018360, A018361, A018362, A018363,

divisors, of numbers in range 200..299: (05) A018364, A018365, A018366, A018367, A018368, A018369, A018370, A018371,

divisors, of numbers in range 200..299: (06) A018372, A018373, A018374, A018375, A018376, A018377, A018378, A018379,

divisors, of numbers in range 200..299: (07) A018380, A018381

divisors, of numbers in range 300..399: (01) A018382, A018383, A018384, A018385, A018386, A018387, A018388, A018389,

divisors, of numbers in range 300..399: (02) A018390, A018391, A018392, A018393, A018394, A018395, A018396, A018397,

divisors, of numbers in range 300..399: (03) A018398, A018399, A018400, A018401, A018402, A018403, A018404, A018405,

divisors, of numbers in range 300..399: (04) A018406, A018407, A018408, A018409, A018410, A018411, A018412, A018413,

divisors, of numbers in range 300..399: (05) A018414, A018415, A018416, A018417, A018418, A018419, A018420, A018421,

divisors, of numbers in range 300..399: (06) A018422, A018423, A018424, A018425, A018426, A018427, A018428, A018429,

divisors, of numbers in range 300..399: (07) A018430, A018431, A018432

divisors, of numbers in range 400..499: (01) A018433, A018434, A018435, A018436, A018437, A018438, A018439, A018440,

divisors, of numbers in range 400..499: (02) A018441, A018442, A018443, A018444, A018445, A018446, A018447, A018448,

divisors, of numbers in range 400..499: (03) A018449, A018450, A018451, A018452, A018453, A018454, A018455, A018456,

divisors, of numbers in range 400..499: (04) A018457, A018458, A018459, A018460, A018461, A018462, A018463, A018464,

divisors, of numbers in range 400..499: (05) A018465, A018466, A018467, A018468, A018469, A018470, A018471, A018472,

divisors, of numbers in range 400..499: (06) A018473, A018474, A018475, A018476, A018477, A018478, A018479, A018480,

divisors, of numbers in range 400..499: (07) A018481, A018482, A018483, A018484, A018485, A018486, A018487, A018488

divisors, of numbers in range 500..599: (01) A018489, A018490, A018491, A018492, A018493, A018494, A018495, A018496,

divisors, of numbers in range 500..599: (02) A018497, A018498, A018499, A018500, A018501, A018502, A018503, A018504,

divisors, of numbers in range 500..599: (03) A018505, A018506, A018507, A018508, A018509, A018510, A018511, A018512,

divisors, of numbers in range 500..599: (04) A018513, A018514, A018515, A018516, A018517, A018518, A018519, A018520,

divisors, of numbers in range 500..599: (05) A018521, A018522, A018523, A018524, A018525, A018526, A018527, A018528,

divisors, of numbers in range 500..599: (06) A018529, A018530, A018531, A018532, A018533, A018534, A018535, A018536,

divisors, of numbers in range 500..599: (07) A018537, A018538, A018539, A018540

divisors, of numbers in range 600..699: (01) A018541, A018542, A018543, A018544, A018545, A018546, A018547, A018548,

divisors, of numbers in range 600..699: (02) A018549, A018550, A018551, A018552, A018553, A018554, A018555, A018556,

divisors, of numbers in range 600..699: (03) A018557, A018558, A018559, A018560, A018561, A018562, A018563, A018564,

divisors, of numbers in range 600..699: (04) A018565, A018566, A018567, A018568, A018569, A018570, A018571, A018572,

divisors, of numbers in range 600..699: (05) A018573, A018574, A018575, A018576, A018577, A018578, A018579, A018580,

divisors, of numbers in range 600..699: (06) A018581, A018582, A018583, A018584, A018585, A018586, A018587, A018588,

divisors, of numbers in range 600..699: (07) A018589, A018590, A018591, A018592, A018593, A018594, A018595, A018596, A018597

divisors, of numbers in range 700..799: (01) A018598, A018599, A018600, A018601, A018602, A018603, A018604, A018605,

divisors, of numbers in range 700..799: (02) A018606, A018607, A018608, A018609, A018610, A018611, A018612, A018613,

divisors, of numbers in range 700..799: (03) A018614, A018615, A018616, A018617, A018618, A018619, A018620, A018621,

divisors, of numbers in range 700..799: (04) A018622, A018623, A018624, A018625, A018626, A018627, A018628, A018629,

divisors, of numbers in range 700..799: (05) A018630, A018631, A018632, A018633, A018634, A018635, A018636, A018637,

divisors, of numbers in range 700..799: (06) A018638, A018639, A018640, A018641, A018642, A018643, A018644, A018645,

divisors, of numbers in range 700..799: (07) A018646, A018647, A018648, A018649, A018650, A018651, A018652

divisors, of numbers in range 800..899 (01) A018653, A018654, A018655, A018656, A018657, A018658, A018659, A018660,

divisors, of numbers in range 800..899 (02) A018661, A018662, A018663, A018664, A018665, A018666, A018667, A018668,

divisors, of numbers in range 800..899 (03) A018669, A018670, A018671, A018672, A018673, A018674, A018675, A018676,

divisors, of numbers in range 800..899 (04) A018677, A018678, A018679, A018680, A018681, A018682, A018683, A018684,

divisors, of numbers in range 800..899 (05) A018685, A018686, A018687, A018688, A018689, A018690, A018691, A018692,

divisors, of numbers in range 800..899 (06) A018693, A018694, A018695, A018696, A018697, A018698, A018699, A018700,

divisors, of numbers in range 800..899 (07) A018701, A018702, A018703, A018704, A018705, A018706, A018707, A018708, A018709

divisors, of numbers in range 900..999 (01) A018710, A018711, A018712, A018713, A018714, A018715, A018716, A018717,

divisors, of numbers in range 900..999 (02) A018718, A018719, A018720, A018721, A018722, A018723, A018724, A018725,

divisors, of numbers in range 900..999 (03) A018726, A018727, A018728, A018729, A018730, A018731, A018732, A018733,

divisors, of numbers in range 900..999 (04) A018734, A018735, A018736, A018737, A018738, A018739, A018740, A018741,

divisors, of numbers in range 900..999 (05) A018742, A018743, A018744, A018745, A018746, A018747, A018748, A018749,

divisors, of numbers in range 900..999 (06) A018750, A018751, A018752, A018753, A018754, A018755, A018756, A018757,

divisors, of numbers in range 900..999 (07) A018758, A018759, A018760, A018761, A018762, A018763, A018764, A018765, A018766

divisors, of numbers not less than 10^16: (01) 10^17-1 A113116, 10^18-1 A113522,

divisors, of numbers not less than 10^16: (02) 2^60-1 A081110,

divisors, of numbers not less than 10^16: (03) 24! A174228,

divisors, of numbers not less than 10^16: (04) order of Monster group A174670, decreasing A174671,

divisors, of numbers not less than 10^16: (05) of 2^1092?1 A177855

divisors, of perfect numbers (as binary): A135652, [A138823], A135653, [A138824], A135654, [A138825], A135655

divisors, of perfect numbers: (01) 28 A018254, [496/2 A018355], 496 A018487,

divisors, of perfect numbers: (02) [8128/2 A138814], 8128 A133024, [33550336/2 A138815], 33550336 A133025

divisors, of primorials: 5# A018255, 7# A018336, 11# A087005, 13# A087006, 17# A087007, 19# A087008

divisors, of squares: (01) 6^2 A018256, 10^2 A018283, 12^2 A018302, 14^2 A018330, 15^2 A018342, 18^2 A018393,

divisors, of squares: (02) 20^2 A018433, 21^2 A018458, 22^2 A018480, 24^2 A018528, 26^2 A018587, 28^2 A018645,

divisors, of squares: (03) 30^2 A018710, 60^2 A035303, 100^2 A133020, 216^2 A114334, 1000^2 A159765

divisors, of x^n-1: A107748, A114536, A117215, A117342, A117343

divisors, proper (or nontrivial): A070824 (divisors of n in the range 1 < d < n), A137510

divisors, proper: often used incorrectly to refer to aliquot divisors (see divisors, aliquot)

divisors, proper: see also divisors, nontrivial

divisors, smallest prime power: A028233, A053597

divisors, smallest: A020639*

divisors, sum of odd: A000593*

divisors, sum of: A000203*, A001065* (proper), A048050* (proper)

divisors, summing over, in Maple: A000031*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Do

dodecagonal is spelled 12-gonal in the OEIS

dodecahedral numbers, sequences related to :

dodecahedral numbers: A006566*, A007589, A005904* (centered)

dodecahedral numbers: see also A005903, A053012, A004068, A005917, A053017, A053018, A053019

dodecahedron, sequences related to :

dodecahedron: A000545 A005903 A030135 A030137 A054882 A054883 A063722 A063723 A066402 A066404

Doehlert-Klee designs: A005765

dominoes, sequences related to :

dominoes, game of: A031940, A008967, A045430

dominoes, packing a box with (or tilings): (1) A001224 A004003 A006125 A001835 A002414 A003697 A003729 A003735 A003741 A003747 A003757

dominoes, packing a box with (or tilings): (2) A003763 A003769 A003775 A004253 A005178 A007762 A028420 A038758 A054344

dominoes, see also: A006574, A056785, A056786

dominoes: the five domino sequences: A108376, A108377, A108378, A108379, A108392

Don's sequence: A007448

donkey problem: see goat problem

dopy numbers: A036554

double factorial numbers n!!: A000165*, A001147* A006882*

double factorial numbers, see factorial numbers, double, n!!

double-free subsets: A050292

doubling substrings (Max Alekseyev's problem): sequences related to :

doubling substrings (Max Alekseyev's problem): A135473*, A135017, A135156, A135157

doubling substrings (Max Alekseyev's problem): see also A137739, A137740, A137741, A137742, A137743*, A137744, A137745, A137746, A137747, A137748, A130838

doubly triangular numbers: A002817

Dowling numbers: A003581

dragon-curve sequences: see folding a piece of paper (dragon curves)

draughts: see checkers

Dress's sequence: A001316*

Duffinian numbers: A003624*

dumbbells: A002940, A002941, A002889, A046741, A055608

dungeons: sequences related to :

dungeons: (01) The four main sequences and their pairwise differences are:

dungeons: (02) alpha=A121263 ------------ beta-alpha=A122734 --------- beta=A121265

dungeons: (03) ....|.......................................................|

dungeons: (04) ....|..............gamma-alpha=A131011......................|

dungeons: (05) delta-alpha=A130287.............delta-beta=A131012....beta-gamma=A127744

dungeons: (06) ....|.......................................................|

dungeons: (07) ....|.......................................................|

dungeons: (08) delta=A121296 ------------ delta-gamma=A128916 ------- gamma=A121295

dungeons: (09) see also A121266, A121264, A121863, A121864, A122618

duplicating substrings: see doubling substrings

Dutch: A007485, A090589

Dutch: see also Index entries for sequences related to number of letters in n

Dyck paths, sequences related to :

Dyck paths:: A005223, A005220, A005221, A005701, A005700, A005222, A006149, A006150, A006151

dying rabbits: A000044 A023434 A023435 A023436 A023437 A023438 A023439 A023440 A023441 A023442

Dynamic storage:: A005595, A005594

D_3 lattice: see f.c.c. lattice

D_3* lattice: see b.c.c. lattice

D_4 lattice: see D4 lattice

D_n lattice: coordination sequence for: see A007900

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ea

e, sequences related to :

e, A003417, A006083, A006259, A006258, A007676, A006525, A001113*, A001114, A006085, A002668, A007512, A001355, A006526, A002285, A007525, A001204, A002119, A006084

e, continued cotangent for: A002668*

e, continued fraction for: A003417*

e, convergents to: A007676*/A007677*, A002119*/A001517*, A053556*/A053557*, A097545/A097546

e, decimal expansion of: A001113*

e-divisors of n: see exponential divisors

e-perfect numbers: A054979

E-trees:: A007141, A007142, A007143, A007144

e.g.f. , sequences related to exponential generating functions :

e.g.f. exp[sum_{d|M} (exp(d*x)-1)/d], M=1..15: A000110 A002872 A002874 A141003 A036075 A141004 A036077 A141005 A141006 A141007 A036081 A141008 A141009 A141010 A141011

e.g.f. sum_{d|M} (exp(d*x)-1)/d, M=1..15: A000012 A000051 A034472 A001576 A034474 A034488 A034491 A034496 A034513 A034517 A034524 A034660 A141012 A141013 A141014

E6 lattice, sequences related to :

E6 lattice, theta series of: A004007*, A005129 (dual)

E7 lattice, sequences related to :

E7 lattice, coordination sequence of: A008397*

E7 lattice, crystal ball sequence of: A008398*

E7 lattice, dual, coordination sequence of: A008921*

E7 lattice, dual, crystal ball sequence of: A008922*

E7 lattice, dual, theta series of: A003781, A030443

E7 lattice, theta series of, see also A004535, A005931, A033699, A037191, A047632

E7 lattice, theta series of: A004008*

E7 lattice: E7 Lie algebra: A005496, A030649, A045515

E8 lattice, sequences related to :

E8 lattice, crystal ball sequence for: A008349, A001361

E8 lattice, orbits of vectors in: A008350

E8 lattice, sizes of balls in: A046948

E8 lattice, theta series of: A004009*, A004017 (with respect to deep hole), A045819 (with respect to mid-point of edge), A108091 (eighth root)

E8 lattice, theta series of: see also: A001943, A004033

each term divides next: A002782

Earliest sequences:: A007379, A007303, A007479

Early Bird numbers: A116700

eban numbers: A006933*

eben numbers: see eban numbers: A006933*

economical numbers: A046759*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ed

Eddington's estimate of protons in universe: A008868*

Egyptian fractions, sequences related to :

Egyptian fractions: A002966*, A002967*, A006585*, A000058*, A020473*, A201463 (the 200000-th sequence in the OEIS), A201464, A201514, A201643, A201644, A201646, A201647, A201648, A201649, A201650

Egyptian fractions: see also (1) A001466 A006487 A006524 A006525 A006526 A014013 A014015 A028229 A028257 A030541

Egyptian fractions: see also (2) A030542 A030543 A030544 A030545 A030546 A030659 A031285 A036680 A051882 A052428

Egyptian fractions: see also (3) A051907 A051908 A051909 A069139 A069261 A038034 A092666 A092667 A092669 A092670 A092671 A092672

Egyptian fractions: using odd denominators: A130738, A169820, A169821

EHS numbers: A064164

Eisenstein integers, norms of: A003136*

Eisenstein series, sequences related to :

Eisenstein series: A006352 (E_2, or G_2), A004009 (E_4), A013973 (E_6), A008410 (E_8), A013974 (E_10), A029828 (E_12), A058550 (E_14), A029829 (E_16), A029830 (E_20), A029831 (E_24)

Eisenstein series: see also A004011 A037146 A037147 A037148 A037149 A037150

Eisenstein-Jacobi primes: A055664, A055665, A055666, A055667, A055668

EKG sequence : sequences related to :

EKG sequence : A064413*

EKG sequence, B_p sequences for: A064004, A064007, A064042

EKG sequence, controlling primes: A064740*, A064742

EKG sequence, cycles in: A064669, A064793, A064784, A064665, A064666, A064667, A064668

EKG sequence, fixed points: A064420

EKG sequence, generalizations: A064417, A064418, A064419, A064956, A064958, A064959

EKG sequence, inverse permutation: A064664

EKG sequence, records in: A064424, A074177

EKG sequence, where n (etc) appears: A064664, A064954, A064955, A064421, A064423, A064468

EKG sequence, written in prime base: A064743, A064744, A067742

EKG sequence: see also (1): A064301, A064426, A065519, A064469, A064470, A064471, A064472, A064473, A064474, A064475, A064654, A064655

EKG sequence: see also (2): A064656, A064425, A064952, A064953, A064954, A064955, A064957, A065057

EKG sequence: similar sequences (1): A109890*, A109735, A111241, A111240, A111242, A111243, A109736, A111238, A111239

EKG sequence: similar sequences (2): A094339, A090252, A110924, A084385, A111244

EKG sequence: similar sequences (3): A111267*, A111084, A111268, A111229, A111270, A111271, A111272

EKG sequence: similar sequences (4): A111273

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_El

electron mass: A003672

elementary sequences, number of: A005268

elevator buttons: A011760*, A052406

elliptic , sequences related to "elliptic":

elliptic curves, conductors: A005788

elliptic curves, rank of: A060748*, A060838*, A060950*, A060951*, A060952*, A060953*, A007765, A007766

elliptic curves, see also: A002150-A002159, A002153, A005524, A006962

elliptic function sn: see sn

elliptic functions:: A001936, A002318, A001937, A001934, A001938, A002754, A001939, A001940, A001941, A002753, A006089, A004005

ELN: see Even Lucky Numbers

embeddings of graphs in plane: see maps, planar

embeddings of graphs in sphere: see maps, planar

emirps: A006567*, A046732*

emirps: see also A003684, A048054, A007628, A048895, A048890

Enantiomorphs:: A006227

Endomorphism patterns:: A006961

Energy functions:: A002909, A002908, A007239, A003496, A003497, A003498

Engel expansions , sequences related to :

Engel expansions , definition: A006784*

Engel expansions for: e (A028310), e^(1/2) (A004277), pi (A006784), 1/pi (A014012), sqrt(2) (A028254), sqrt(3) (A028257), sqrt(5) (A059176), sqrt(10) (A059177), the golden ratio, (1+sqrt(5))/2 (A028259)

Engel expansions for: Euler's constant gamma (A053977), 2^(1/3) (A059178), 3^(1/3) (A059179), ln(2) (A059180), ln(3) (A059181), ln(10) (A059182), 1/ln(2) (A059183), 1/ln(10) (A059184), Pi^2 (A059185), Pi^2/6 or zeta(2) (A059186)

Engel expansions for: e^Pi (A059196), Pi^e (A059197), e^gamma (A059199), -ln(ln(2)) (A059200), Catalan's constant G (A054543), Khintchine's constant (A054544),

Engel expansions for: sqrt(Pi) (A059187), zeta(3) (A053980), Gamma(1/3) (A059188), Gamma(2/3) (A059189), gamma^2 (A059190), 1/gamma (A059191), ln(1/gamma) (A059192), 1/e (A059193), 1/e^2 (A059194), ln(Pi) (A059195)

Engel expansions: see also (1) A001601 A002812 A006537 A006538 A006539 A006540 A006693 A006695 A007567 A007568

Engel expansions: see also (2) A007768 A014014

English words for the numbers, dependent on: A005589, A002810, A001167

English: see also Index entries for sequences related to number of letters in n

enneagon is spelled 9-gon in the OEIS

enneagonal is spelled 9-gonal in the OEIS

Entringer , sequences related to :

Entringer numbers: A008280*, A000111*, A006212, A006213, A006214, A006215, A006216, A006217, A008281, A008282, A008283, A010094

Epstein's Put or Take a Square game: A005240, A005241

equiangular lines: A002853*

Erastothenes: spelled as Eratosthenes in the datasbase

Eratosthenes: see sieve, Eratosthenes

Erdos-Woods numbers: A059756

erf: see error function

Eric numbers: see Belgian numbers

error function: A002067, A007019, A007680

Esperanto: A057853

Esperanto: see also Index entries for sequences related to number of letters in n

esters: A000632, A005958

eta(x), sequences related to :

eta(x), Dedekind's function: A010815*, A007706*

eta(x): see also A001482, A001483, A001484, A001485, A001486, A001487, A001488, A001490, A006665

ethylene derivatives: A000631, A005959

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Eu

Euclid , sequences related to :

Euclid numbers: A006862*, A000058*, A014545

Euclid numbers: see also Euclid's proof, primes from

Euclid's algorithm , sequences related to :

Euclid's algorithm: (1) A034883 A049816 A049828 A049834 A049837 A049840 A049843 A049848 A049849 A049850 A051010 A051011

Euclid's algorithm: (2) A051012

Euclid's proof, primes from: A000945 A000946 A002585 A005265 A005266 A051342

Euclid's proof, see also Euclid numbers

Euclid-Mullin sequence: A000945*, A000946*

Euclidean fields: A003174*, A003246*

Euler characteristics: A006481, A006482, A007888

Euler graphs: see graphs, Euler

Euler numbers , sequences related to :

Euler numbers: A000364*, A000111*

Euler numbers: generalized:: A001587, A005799, A000187, A000192, A005800, A001586, A000281, A000436, A000490, A002115

Euler numbers: see also Eulerian numbers

Euler numbers: see also A007316, A002435, A001587, A005799, A000187, A000192, A005800, A002627, A001586, A007313, A000281, A002735, A002436, A002438, A002438, A002437, A000436, A000490, A002115

Euler PHI function: A003473, A003474

Euler polynomials , sequences related to :

Euler polynomials: (1) A004172 A004173 A004174 A004175 A011934 A020523 A020524 A020525 A020526 A020547 A020548 A058940

Euler polynomials: (2) A059341/A059342

Euler totient function phi(n) (A000010): see totient function phi(n)

Euler transforms: sequences related to :

Euler transforms: ( 1) A000070 A000097 A000098 A000237 A000335 A000391 A000417 A000428 A000608 A000710 A000711 A000712

Euler transforms: ( 2) A000713 A000714 A000715 A000716 A001372 A001373 A001384 A001385 A001970 A003080 A003094 A004101

Euler transforms: ( 3) A004113 A005470 A005750 A007003 A007441 A007562 A007563 A007713 A007714 A007864 A018243 A023871

Euler transforms: ( 4) A024607 A029856 A029857 A029859 A029860 A029861 A029862 A029863 A029864 A029877 A029878 A030009

Euler transforms: ( 5) A030010 A030011 A030012 A030268 A034691 A034823 A034824 A034825 A034826 A034899 A035052 A035082

Euler transforms: ( 6) A035528 A038000 A038055 A038059 A038063 A038064 A038065 A038066 A038071 A038072 A045842 A048808

Euler transforms: ( 7) A048809 A048810 A048811 A048812 A048813 A048814 A048815 A049311 A049312 A050381 A050383 A053483

Euler transforms: ( 8) A054051 A054053 A054742 A054746 A054747 A054749 A054919 A054921 A055277 A055375 A055884 A055885

Euler transforms: ( 9) A055886 A055922 A055923

Euler transforms: see also Transforms file

Euler's constant gamma (or Euler-Mascheroni constant): A002852* (continued fraction for), A001620* (decimal expansion of)

Euler's constant gamma: see also A006284, A002389

Euler's idoneal numbers, or numeri idonei (or numerus idoneus): sequences related to :

Euler's idoneal numbers, or numeri idonei (or numerus idoneus): A000926*

Euler's idoneal numbers, or numeri idonei (or numerus idoneus): see also A139642, A139827

Euler's product: A002107

Euler-Bernoulli numbers: A008280*, A008281

Euler-Jacobi pseudoprimes: see pseudoprimes

Euler-Mascheroni constant: see Euler's constant

Eulerian circuits: A006239, A006240, A007082

Eulerian numbers, sequences related to :

Eulerian numbers, triangle of: A008292*, A008517, A049061

Eulerian numbers, triangle of: see also A008518, A007338, A046802, A046803, A014467, A014468, A014469, A014470, A014472

Eulerian numbers: A008292*

Eulerian numbers: see also (1) A000295 A000460 A000498 A000505 A000514 A000800 A001243 A001244 A004301 A005803 A006260 A006551

Eulerian numbers: see also (2) A007347 A011818 A014449 A014450 A014459 A014461 A014630 A014732 A014733 A014734 A014735 A014748

Eulerian numbers: see also (3) A014749 A014756 A014758 A014759 A014765 A025585 A030196 A038675 A046802 A048516 A049039

Eulerian numbers: see also Euler numbers

Eulerian polynomials: A008292*

Eulerian polynomials: see Euler polynomials

even numbers, fake: A080588

even numbers: A005843*

even numbers: see also A007534

even numbers: see also eban numbers A006933

Even sequences:: A000117, A000116, A000206, A000208

even unimodular lattices, see: lattices, unimodular

evenish numbers (all digits even): A014263

every permutation of digits is prime: A003459*

evil numbers: A001969*

excess of n: A046660*

exclusive OR, see under XOR

exp(1 - e^x): A000587*

exp(Pi*sqrt(163)): A060295, A058292, A019297

exponential divisors, sequences related to :

exponential divisors: A049419, A051377, A054979, A054980

exponential numbers: A000110

Exponentiation:: A007548, A007549

exponents in factorization of n: A124010

Expressions:: A003006, A003007, A003008

Expulsion array:: A007063

extending, sequences that need, see sequences that need extending

extremal theta series and weight enumerators, sequences related to :

extremal theta series: A034597*, A034598, A008408, A004672, A004675

extremal weight enumerators: A034414*, A034415

EYPHEKA! , sequences related to :

EYPHEKA! num = DELTA + DELTA + DELTA: A008443, A053604, A063992, A063993

E_4 and E_6 theorem: A008615

E_4 Eisenstein series: A004009

E_6 Eisenstein series: A013973

E_6 group: A008584

E_6 lattice: see E6 lattice

E_7 lattice: see E7 lattice

E_7 Lie algebra: see E7 Lie algebra

E_8 lattice: see E8 lattice

E_8(3): A002268

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Fa

f.c.c. lattice , sequences related to :

f.c.c. lattice, home page for

f.c.c. lattice, animals in: A006194 A007198 A007199 A038172 A038173 A038174 A039742

f.c.c. lattice, coordination sequence for: A005901*, A005902*

f.c.c. lattice, norms: A004014, A110907

f.c.c. lattice, orbits on points: A008368

f.c.c. lattice, polygons on: A001337 A002899 A005398

f.c.c. lattice, series expansions for: (1) A001407 A002165 A002166 A002892 A002918 A002921 A002924 A003205 A003209 A003491 A003495 A003498

f.c.c. lattice, series expansions for: (2) A006806 A006812 A047712

f.c.c. lattice, theta series of: A004015* A005884 A005885 A005886 A005887 A008663 A008664

f.c.c. lattice, walks on: (1) A000765 A000766 A000767 A000768 A001336 A003287 A003288 A005543 A005544 A005545 A005546 A005547

f.c.c. lattice, walks on: (2) A005548 A001337

f.c.c. lattice, walks on: see also f.c.c. lattice, animals in

fabrics: A005441

face-centered cubic lattice: see f.c.c. lattice

factorial numbers , sequences related to :

factorial numbers n!: A000142*

factorial numbers, !n: A003422*

factorial numbers, alternating: A005165*

factorial numbers, as a product of smaller factorials: A034878, A075082

factorial numbers, as a sum of two triangular numbers: A180590. A152089, A171099

factorial numbers, differences of: A001564 A001565 A001688 A001689 A023043 A023044 A023045 A023046 A023047 A047920

factorial numbers, divisibility of: A011776, A011777, A011778

factorial numbers, double, n!!: A000165*, A001147*, A006882*

factorial numbers, double, n!!: see also A007919, A007922, A019513, A045766

factorial numbers, last nonzero digit in various bases (3-16): A136690, A136691, A136692, A136693, A136694, A136695, A136696, A008904*, A136697, A136698, A136699, A136700, A136701, A136702

factorial numbers, left, !n: A003422*

factorial numbers, n-factorials (1): A000407 A005329 A028687 A028688 A028692 A028693 A028694 A034829 A034830 A034831 A034832 A034833 A034834 A034835

factorial numbers, n-factorials (2): A034904 A034908 A034909 A034910 A034911 A034912 A034975 A034976 A034977 A034996 A035012 A035013 A035017 A035018

factorial numbers, n-factorials (3): A035020 A035021 A035022 A035023 A035024 A035097 A035265 A035272 A035273 A035274 A035275 A035276 A035277 A035278

factorial numbers, n-factorials (4): A035279 A035308 A035323 A045754 A045755 A045756 A045757 A049209 A049210 A049211 A049212 A051188 A051189 A051232

factorial numbers, n-factorials (5): A051262

factorial numbers, q-factorials (1): A015001 A015002 A015004 A015005 A015006 A015007 A015008 A015009 A015011 A015013 A015015 A015017

factorial numbers, q-factorials (2): A015018 A015019 A015020 A015022 A015023 A015025 A015026 A015027 A015028

factorial numbers, sequences related to digits of: A006488 A033147 A033180 A035065 A035067 A045520 A045521 A045522 A045523 A045524 A045525 A045526 A045527 A045528

factorial numbers: see also (01): A000966 A001048 A001272 A001710 A001715 A001720 A001725 A001730 A001804 A002301 A002981 A002982

factorial numbers: see also (02): A003135 A004664 A005008 A005095 A005096 A005212 A005359 A006472 A006993 A007339 A007611

factorial numbers: see also (03): A007749 A010790 A010791 A010792 A010793 A010794 A010795 A010796 A010797 A010798 A010799 A010800

factorial numbers: see also (04): A024168 A033187 A033932 A033933 A034860 A034865 A034866 A034878 A036603 A037082 A037083 A038154 A038156

factorial numbers: see also (05): A038157 A038507 A045647 A048742 A049432 A049433 A049614 A033312

factorial numbers: see also (06): A000178, A000197, A007489, A001044, A000596, A002454, A002455, A002453, A000597, A05130, A051188

factorial numbers: see also (07): A002109, A010786, A014144, A055209, A008904, A008905

factorial numbers: see also central factorial numbers

factorial numbers: see also multifactorial numbers

factorial primes: A002982, A055490

factorial primes: see also A002981, A080778

factorials, double, see factorial numbers, double, n!!

factorials, number of trailing zeros: A027868

factorials: see factorial numbers

factoring , sequences related to :

factoring n, number of ways: A001055*

FactorInteger (Mma): A035306

Factorization (MAGMA): A035306

factorization patterns: A006167, A006168, A006169, A006170, A006171

factorization problems: see sequences whose extension requires factoring large numbers

factorizations of important sequences: exponents in factorization of n: A124010, A064547

factorizations of important sequences: n: A027746; Fibonacci(n): A060441; 2^n-1: A001265; 2^n+1: A001269

factorizations, into given number of factors: writing n = x*y (A038548, unordered, A000005, ordered), n = x*y*z (A034836, unordered, A007425, ordered), n = w*x*y*z (A007426, ordered)

factorizations, ordered: A074206*, A002033

falling factorials: A005490, A005492, A005494

fanout-free functions , sequences related to :

fanout-free functions: A005612 A005615 A005617 A005736 A005737 A005738 A005740 A005741 A005742 A005743

Farey series or tree or fractions , sequences related to :

Farey series or tree: A006842*/A006843*, A007305*/A007306*, A049455*/A049456*, A177405/A177407, A178031, A178047, A177903, A178042

Farey series or tree: see also Stern-Brocot tree

Farey series or tree: see also A005728

fcc lattice: see f.c.c. lattice

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Fe

Feigenbaum constants: A006890*, A006891*

Fermat , sequences related to :

Fermat coefficients: A000967 A000968 A000969 A000970 A000971 A000972 A000973

Fermat numbers, 2^(2^n) + 1: A000215*, A050922

Fermat numbers: see also A046052

Fermat primes, generalized: see primes, generalized Fermat

Fermat primes: see primes, Fermat

Fermat quotients: A007663*

Fermat remainders: A002323*

Fermat's last theorem: A019590*

Fermionic string states: A005309, A005310

Feynman diagrams: A005411, A005412, A005413, A005414

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Fi

Fibbinary numbers: A003714*

Fibonacci entry points: see under Fibonacci numbers, Fibonacci entry points

Fibonacci expansion: see Zeckendorf expansion

Fibonacci groups: A202624

Fibonacci numbers, +- k: A000045 A001611 A000071 A157725 A001911 A157726 A006327 A157727 A157728 A157729 A167616

Fibonacci numbers, sequences related to :

Fibonacci numbers, A000045*

Fibonacci numbers, bisection of: A001519, A001906

Fibonacci numbers, coded: A005203, A005205

Fibonacci numbers, compositions into: see Fibonacci numbers, number of ways to write n as a sum of

Fibonacci numbers, convolved: A001628 A001629 A001872 A001873 A001874 A001875 A006684 A037027

Fibonacci numbers, ending in n: A000350

Fibonacci numbers, Fibonacci entry points: A001602, A001177

Fibonacci numbers, Fibonacci in digits: A093086

Fibonacci numbers, frequencies: A001178

Fibonacci numbers, generalized, g.f.: (2-rx)/(1-rx-sx^2): (1) A000032 (Lucas), A002203 (Pell-Lucas), A006497, A014448, A014551 (Pell-Jacobsthal), A072265, A075118, A080040, A080042, A085447, A087130, A087131,

Fibonacci numbers, generalized, g.f.: (2-rx)/(1-rx-sx^2): (2) A087404, A087451, A102345

Fibonacci numbers, generalized, g.f.: x/(1-rx-sx^2): (1) A000045 (Fibonacci), A000129 (Pell), A001045 (Jacobsthal), A001076, A002532, A005668, A006130, A006131, A006190, A007482, A015440, A015441,

Fibonacci numbers, generalized, g.f.: x/(1-rx-sx^2): (2) A015442, A015518, A015519, A015521, A015523, A015530, A015531, A015532, A015532, A015535, A015536, A015537,

Fibonacci numbers, generalized, g.f.: x/(1-rx-sx^2): (3) A015540, A015541, A015551, A015555, A015559, A015561, A015562, A015564, A015574, A015575, A015579, A015580,

Fibonacci numbers, generalized, g.f.: x/(1-rx-sx^2): (4) A015581, A030195, A057087, A057088, A080953, A083858, A085449, A085939, A090017, A106648

Fibonacci numbers, generalized: (1) A001584 A005189 A006207 A006208 A006209 A006210 A006211 A006603 A006604 A015440 A015441 A015442

Fibonacci numbers, generalized: (2) A015443 A015445 A015446 A015447 A015448 A015449 A015453 A015454 A015455 A015456 A015457 A054437

Fibonacci numbers, generalized: (3) A057076

Fibonacci numbers, k-th order: A000012, A000045, A000073, A000078, A001591, A001592, A122189, A079262, A104144, A122265, A168082

Fibonacci numbers, mod n: A001175

Fibonacci numbers, number of ways to write n as a sum of: A000119, A000121, A013583, A083853, A076739, A080888, A003107, A007000

Fibonacci numbers, occurrence of numbers in:: A001602, A001177

Fibonacci numbers, partitions into: see Fibonacci numbers, number of ways to write n as a sum of

Fibonacci numbers, partitions into:: A003107, A007000

Fibonacci numbers, periods of: A001175

Fibonacci numbers, prime: see primes, Fibonacci numbers

Fibonacci numbers, primes dividing:: A001578, A000057, A001604, A001603

Fibonacci numbers, primitive part of: A061446

Fibonacci numbers, products of:: A003266

Fibonacci numbers, reciprocals of:: A006172, A005522

Fibonacci numbers, signed: A039834

Fibonacci numbers, sums of:: A000119, A000121, A000557, A005968, A005969, A006133, A000556, A006132

Fibonacci numbers, transforms of:: A007440, A007435, A007436, A007552, A007553

Fibonacci numbers, two-dimensional: A006506

Fibonacci numbers: complementary sequence: A001650

Fibonacci numbers: not: A001650

Fibonacci numbers: see also (1): A007492, A003603, A001176, A001611, A003247, A003251, A003258, A002062, A006985, A006449, A001932, A005370, A003233, A005653

Fibonacci numbers: see also (2): A005620, A003254, A005625, A000071, A005207, A005269, A005624, A003256, A007570, A005270, A003257, A005626, A005623, A003255

Fibonacci numbers: see also (3): A005652, A005622, A003252, A003234, A006502, A005189, A001178, A001690, A005621, A003259, A003250, A003147, A003248, A003249

Fibonacci numbers: see also para_Fibonacci sequences

Fibonacci numbers: variants using greatest prime factor or least prime factor: A175723, A177904, A177923, A178179, A178174, A178094, A178095

Fibonacci or circle product: A101330

Fibonacci or circle product: see Knuth's Fibonacci or circle product

Fibonacci periods: A001175*

Fibonacci primitive root: A003147

Fibonacci representations:: A003247, A003251, A003258, A003233, A003254, A003256, A003257, A003255, A003252, A003234, A003259, A003250, A003248, A003249

Fibonacci search: A006478, A006479

Fibonacci successors: A022342*

Fibonacci word (or binary sequence): A003849*, A005614*, A003842*, A005713, A036299, A076662

Fibonacci-Pascal triangle: A0045995*, A006449

Fibonomial Catalan numbers: A003150*

Fibonomial coefficients (1): A001655 A001656 A001657 A001658 A003267 A003268 A010048* A034801 A034802 A056565 A056566 A056567

Fibonomial coefficients (2): A056568 A056570

Fielder sequences:: A001635, A001636, A001641, A001642, A001643, A001644, A001645, A001648, A001649, A001638, A001639, A001640

fields, cyclotomic: see cyclotomic fields

fields, quadratic: see quadratic fields

Fifteen Puzzle, sequences related to :

Fifteen Puzzle: A087725, A089473, A089484, A090031, A090032, A151943

Fifth roots:: A005532, A005533, A005534, A003673

Figurate numbers:: A000579, A002417, A002418, A002419

figure 8's: A003304, A003305

filaments: A002013, A002014

final digits , sequences related to final digits of numbers :

final digits: of n: A010879*

final digits: (1) A000689 A000855 A000993 A001148 A001218 A001264 A001311 A001903 A002015 A003893 A004071 A007652

final digits: (2) A008904 A008906 A008954 A008959 A008960 A014390 A014391 A014392 A014393 A025016 A028915

final digits: (3) A030984 A030985 A030986 A030987 A030988 A030989 A030990 A030991 A030992 A030993 A030994 A030995

final digits: (4) A045547 A045548 A045549 A045550 A045551 A045552 A045553 A045554 A045555 A045556 A045557 A045558

final digits: (5) A045559 A045560 A045561 A045562 A045563 A045564 A045565 A045566 A045567 A045568 A045569 A045570

final digits: (6) A045574 A046804 A047501 A055992 A056129 A056525 A056849 A058376 A059995 A060073 A060458 A060460

final digits: (7) A060582 A060588 A061448 A061449 A061450 A061590 A061834

final digits: (8) A061835 A061839 A062885 A063272 A063944 A064541 A064733 A064734 A065356

final nonzero digits of factorial numbers in various bases (3-16): A136690, A136691, A136692, A136693, A136694, A136695, A136696, A008904*, A136697, A136698, A136699, A136700, A136701, A136702

Fine's sequence: A000957*

fine-structure constant: A003673, A005600

Finite automata:: A007041, A006845, A000282, A006691, A000591, A006689, A006692, A006690

finite difference measurements: A005192

finite sequences with a large number of terms, sequences related to :

finite sequences with a large number of terms: A038087, A038093, A102850, A117853

Finnish: A001050

Finnish: see also Index entries for sequences related to number of letters in n

first factors: A000927

First kind:: A000914, A000254, A000399, A001303, A000454, A000482, A001233, A000915, A001234

First moment:: A006732, A006740, A006736

First occurrence of:: A001602, A001177

fiveish numbers (all digits 0 or 5): A169964

fixed points of mappings , sequences related to :

fixed points of mappings (01): A006996 0 -> {0, 0, 0}, 1 -> {1, 2, 0}, 2 -> {2, 1, 0}

fixed points of mappings (02): A039969 0 -> {0, 0, 0}, 1 -> {1, 2, 0}, 2 -> {2, 1, 0} when 0 -> {0, 0, 0} 1 -> {1, 1, 1}, 2 -> {2, 2, 2}

fixed points of mappings (03): A007949 0 -> {0, 0, 1}, 1 -> {0, 0, 2}, 2 -> {0, 0, 3}, 3 -> {0, 0, 4}, etc., a -> {0, 0, a + 1}

fixed points of mappings (04): A003849 0 -> {0, 1}, 1 -> {0}

fixed points of mappings (05): A096268 0 -> {0, 1}, 1 -> {0, 0}

fixed points of mappings (06): A000035 0 -> {0, 1}, 1 -> {0, 1}

fixed points of mappings (07): A096270 0 -> {0, 1}, 1 -> {0, 1, 1}

fixed points of mappings (08): A100260 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {3, 1}, 3 -> {3, 2}

fixed points of mappings (09): A080843 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {0}

fixed points of mappings (10): A096271 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {0, 0}

fixed points of mappings (11): A007814 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {0, 3}, 3 -> {0, 4}, etc., a -> {0, a + 1}

fixed points of mappings (12): A101614 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {1, 0}

fixed points of mappings (13): A101659 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {1, 1}

fixed points of mappings (14): A101660 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {1, 2}

fixed points of mappings (15): A101661 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {2, 0}

fixed points of mappings (16): A101662 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {2, 1}

fixed points of mappings (17): A101663 0 -> {0, 1}, 1 -> {0, 2}, 2 -> {2, 2}

fixed points of mappings (18): A010060 0 -> {0, 1}, 1 -> {1, 0}

fixed points of mappings (19): A101664 0 -> {0, 1}, 1 -> {1, 2}, 2 -> {0, 0}

fixed points of mappings (20): A101665 0 -> {0, 1}, 1 -> {1, 2}, 2 -> {0, 2}

fixed points of mappings (21): A101666 0 -> {0, 1}, 1 -> {1, 2}, 2 -> {1, 0}

fixed points of mappings (22): A101667 0 -> {0, 1}, 1 -> {1, 2}, 2 -> {2, 0}

fixed points of mappings (23): A071858 0 -> {0, 1}, 1 -> {1, 2}, 2 -> {2, 0}

fixed points of mappings (24): A000120 0 -> {0, 1}, 1 -> {1, 2}, 2 -> {2, 3}, 3 -> {3, 4}, etc.

fixed points of mappings (25): A101668 0 -> {0, 1}, 1 -> {2, 0}, 2 -> {0, 0}

fixed points of mappings (26): A101669 0 -> {0, 1}, 1 -> {2, 0}, 2 -> {0, 1}

fixed points of mappings (27): A101670 0 -> {0, 1}, 1 -> {2, 0}, 2 -> {0, 2}

fixed points of mappings (28): A101671 0 -> {0, 1}, 1 -> {2, 0}, 2 -> {1, 0}

fixed points of mappings (29): A101672 0 -> {0, 1}, 1 -> {2, 0}, 2 -> {1, 1}

fixed points of mappings (30): A010872 0 -> {0, 1}, 1 -> {2, 0}, 2 -> {1, 2}

fixed points of mappings (31): A101673 0 -> {0, 1}, 1 -> {2, 0}, 2 -> {2, 0}

fixed points of mappings (32): A101674 0 -> {0, 1}, 1 -> {2, 0}, 2 -> {2, 1}

fixed points of mappings (33): A112658 0 -> {0, 1), 1 -> {2, 1}, 2 -> {0, 3}, 3 -> {2, 3}

fixed points of mappings (34): A080846 0 -> {0, 1, 0}, 1 -> {0, 1, 1}

fixed points of mappings (35): A076826 0 -> {0, 1, 2}, 1 -> {1}, 2 -> {2, 1, 0}

fixed points of mappings (36): A053838 0 -> {0, 1, 2}, 1 -> {1, 2, 0}, 2 -> {2, 0, 1}

fixed points of mappings (37): A091297 0 -> {0, 2}, 1 -> {0, 2}, 2 -> {1, 1}

fixed points of mappings (38): A092606 0 -> {0, 2, 1}, 1 -> {0}, 2 -> {0}

fixed points of mappings (39): A000004 0 -> {1}, 1 -> {0, 0}

fixed points of mappings (40): A000012 0 -> {1}, 1 -> {0, 0}

fixed points of mappings (41): A005614 0 -> {1}, 1 -> {1, 0}

fixed points of mappings (42): A080764 0 -> {1}, 1 -> {1, 0, 1}}

fixed points of mappings (43): A080764 0 -> {1}, 1 -> {1, 1, 0}

fixed points of mappings (44): A029883 0 -> {1, -1}, 1 -> {1, 0, -1}, -1 -> {0}

fixed points of mappings (45): A096268 0 -> {1, 0}, 1 -> {0, 0}

fixed points of mappings (46): A035263 0 -> {1, 1}, 1 -> {1, 0}

fixed points of mappings (47): A092412 0 -> {1, 1}, 1 -> {1, 2}, 2 -> {1, 3}, 3 -> {1, 0}

fixed points of mappings (48): A014578 0 -> {1, 1, 1}, 1 -> {1, 1, 0}

fixed points of mappings (49): A089650 0 -> {1, 1, 1}, 1 -> {1, 2, 0}, 2 -> {1, 0, 2}

fixed points of mappings (50): A089652 0 -> {1, 1, 1, 1}, 1 -> {1, 2, 3, 0}, 2 -> {1, 3, 1, 3}, 3 -> {1, 0, 3, 2}

fixed points of mappings (51): A051064 1 -> {1, 1, 2}, 2 -> {1, 1, 3}, 3 -> {1, 1, 4}, 4 -> {1, 1, 5}, etc.

fixed points of mappings (52): A092400 1 -> {1, 1, 2, 1, 2, 1, 1}, 2 -> {1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 1}

fixed points of mappings (53): A003842 1 -> {1, 2}, 2 -> {1}

fixed points of mappings (54): A056832 1 -> {1, 2}, 2 -> {1, 1}

fixed points of mappings (55): A102005 1 -> {1, 2}, 2 -> {1, 1, 1}

fixed points of mappings (56): A007001 1 -> {1, 2}, 2 -> {1, 2, 3}, 3 -> {1, 2, 3, 4}, etc., a -> {1,..., a+1}

fixed points of mappings (57): A092782 1 -> {1, 2}, 2 -> {1, 3}, 3 -> {1}

fixed points of mappings (58): A103269 1 -> {1, 2}, 2 -> {1, 3}, 3 -> {1}

fixed points of mappings (59): A001511 1 -> {1, 2}, 2 -> {1, 3}, 3 -> {1, 4}, 4 -> {1, 5}, etc.

fixed points of mappings (60): A105498 1 -> {1, 2}, 2 -> {1, 4}, 3 -> {3, 4}, 4 -> {3, 4}

fixed points of mappings (61): A001285 1 -> {1, 2}, 2 -> {2, 1}

fixed points of mappings (62): A001316 1 -> {1, 2}, 2 -> {2, 4}, 4 -> {4, 8}, 8 -> {8, 16}, etc., a -> {a, 2a}

fixed points of mappings (63): A100619 1 -> {1, 2}, 2 -> {3, 1}, 3 -> {1}

fixed points of mappings (64): A010882 1 -> {1, 2}, 2 -> {3, 1}, 3 -> {2, 3}

fixed points of mappings (65): A105500 1 -> {1, 2}, 2 -> {3, 2}, 3 -> {3, 4}, 4 -> {1, 4}

fixed points of mappings (66): A060236 1 -> {1, 2, 1}, 2 -> {1, 2, 2}

fixed points of mappings (67): A105203 1 -> {1, 2, 1}, 2 -> {2, 3, 2}, 3 -> {3, 1, 3}

fixed points of mappings (68): A105646 1 -> {1, 2, 1}, 2 -> {3, 4, 3}, 3 -> {4, 3, 4}, 4 -> {2, 1, 2}

fixed points of mappings (69): A106825 1 -> {1, 2, 2, 2}, 2 -> {2, 1, 1, 1}

fixed points of mappings (70): A105969 1 -> {1, 2, 3}, 2 -> {2, 1, 2}, 3 -> {3, 4, 5}, 4 -> {4, 3, 4}, 5 -> {5, 6, 1}, 6 -> {6, 5, 6}

fixed points of mappings (71): A026600 1 -> {1, 2, 3}, 2 -> {2, 3, 1}, 3 -> {3, 1, 2}

fixed points of mappings (72): A057215 1 -> {1, 2, 3}, 2 -> {2, 3, 1}, 3 -> {3, 1, 2} then 1 -> {0, 1}, 2 -> {1, 0}, 3 -> {0, 1}

fixed points of mappings (73): A105789 1 -> {1, 2, 3, 2, 1}, 2 -> {4, 3, 2, 3, 4}, 3 -> {2, 1, 4, 1, 2}, 4 -> {3, 4, 1, 4, 3}

fixed points of mappings (74): A106824 1 -> {1, 3}, 2 -> {1, 3, 2, 2, 3}, 3 -> {1, 3, 2, 3}

fixed points of mappings (75): A080757 1 -> {2, 1}, 2 -> {2, 1, 1}

fixed points of mappings (76): A106826 1 -> {2, 1}, 2 -> {2, 3}, 3 -> {4, 3}, 4 -> {4, 1}

fixed points of mappings (77): A105499 1 -> {2, 1, 2}, 2 -> {1, 3, 1}, 3 -> {3, 2, 3}

fixed points of mappings (78): A102668 1 -> {3}, 2 -> {1}, 3 -> {2, 1, 2}

fixed points of mappings (79): A105584 1 -> {3, 4}, 2 -> {2, 3}, 3 -> {1, 2}, 4 -> {1, 4}

fixed points of mappings (80): A092444 a -> {a, b}, b -> {c, c}, c -> {a, b}, a -> {1}, b -> {1}, c -> {0}

fixed points of mappings (81): A038190 a -> {a, b}, b -> {a, d}, c -> {c, b}, d -> {c, d} a -> {2, 2, 0, 1}, b -> {0, 2, 1, 1}, c -> {0, 2, 2, 1}, d -> {1, 2, 0, 1}

fixed points of mappings (82): A001316 a -> {a, 2a}

fixed points of mappings (83): A038573 a -> {a, 2a + 1}

fixed points of mappings (84): A006047 a -> {a, 2a, 3a}

fixed points of mappings (85): A048883 a -> {a, 3a}

Flavius's sieve: see sieve, Flavius

flexagons: see hexaflexagons

flimsy numbers: A005360*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Fo

folding , sequences related to folding things :

folding (or bending) a piece of wire: A001997*, A001998*, A001444*, A066372*

folding a map: A001417, A001418

folding a piece of paper (dragon curves): A014577, A014707, A014709, A014710

folding a piece of paper, number of folds: A027383, A076024

folding a strip of stamps: A001011*, A001010, A002369, A000682, A000560, A000136, A001415, A001416, A007822

folding: see also meanders

Ford and Johnson sorting: A001768

forests , sequences related to :

forests, binary: A003214

forests, labeled: A001858*, A138464 (triangle); A000272 (labeled rooted)

forests, random: A005196, A005197

forests, unlabeled: A005195*, A136605 (triangle)

forests: (1): A000248 A000949 A000950 A000951 A001862 A005198 A005199

forests: (2): A006544 A006611 A011800 A020865 A020867 A020869 A020872 A033184 A033185 A035054 A035055 A035056

forests: (3): A038000 A045739 A045740

forests: see also trees

fortnightly intervals: A001356, A051121

Fortunate numbers: A005235*, A045493, A046066, A035346

Foster census: A059282*

fountains of coins: A005169, A005170, A047998

four 4's problem : sequences related to problem of building numbers from digits :

four 4's problem: (1) A036057 A048183 A048249 A060315 A060316 A061310 A066409 A068520 A069765 A070960 A071115 A071313

four 4's problem: (2) A071314 A071603 A071794 A071819 A071848 A071905 A071985 A078405 A078413

four-color theorem: A000934

fourth powers: A000583*

fractal sequences , sequences related to fractals :

fractal sequences: A003602 A003603 A004736 A002260 A020903 A020906 A022446 A022447 A038001 A108738 A101279 A118816

fractional base: defined in A024630

fractional base: see base, fractional

fractions: see the separate Index to fractions in OEIS

fractions: see also rational numbers

francais: see French

Franel numbers: A000172*

free energy series , sequences related to :

free energy series (1): A001393 A002890 A002891 A007276 A010107 A010108 A010109 A010110 A010557 A030044 A030045 A030047

free energy series (2): A030048 A030049 A056620

free subsets: A007230, A007231, A007232, A007233

French , sequences related to :

French language, sequences involving: A001062 A006969 A007005* A014254 A014287 A014367 A037193 A037194

French: see also Index entries for sequences related to number of letters in n

Friedman's sequence (or Harvey Friedman's sequence): see A014221

friendly numbers: A014567, A007770, A074902, A050972, A050973, A074873

friendly pairs: A050972, A050973

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Fu

full sets: A001192*

Fullerenes: A007894*, A046880

functional cube roots: A052132 - A052139

functional determinants: A001970*

functional square roots: A048602/A048603 (sin x), A048606/A048609 (sinh x), A048605/A048604 (atan x), A048607/A048608 (log (1+x)), A052104/A052105 (exp x - 1)

functions, connected: A000081*

functions, with a fixed point: A000081

functors: A007322*

fundamental discriminants: A003658

fundamental units: (1) A003653 A003654 A006828 A006829 A006830 A006831 A006832 A014000 A014046 A014077 A023677 A023678

fundamental units: (2) A048941 A048942 A053370 A053371 A053372 A053373 A053374 A053375 A055735

fusc: A002487

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ga

G.C.D.: see entries under GCD

g.c.d.: see entries under GCD

G.F.: see generating functions

g.f.: see generating functions

Gaelic: A001368

Gaelic: see also Index entries for sequences related to number of letters in n

Galego: see also Index entries for sequences related to number of letters in n

games , sequences related to :

games, born on day n: A047995, A037142, A065401, A065402, A065407

games, Grundy's game: see Grundy's game

games: see also checkers

games: see also chess

games: see also Mancala

games: see also Towers of Hanoi

games: see also under individual names

gamma (Euler-Mascheroni constant), sequences related to :

gamma (Euler-Mascheroni constant): A002852* (continued fraction for), A001620* (decimal expansion of)

gamma function, sequences related to :

gamma function: A005446, A005147, A001164, A005146, A005447, A001163, A068467, A202623

gamma function: see also factorials

gaps: A002386, A005250, A002540, A000101, A000230, A000232, A001549, A001632

gaps: see also primes, gaps between

gates:: A005610, A005611, A005609, A005608

Gauss-Kuzmin-Wirsing constant: A038517

Gaussian binomial coefficients, sequences related to :

Gaussian binomial coefficients: (1): A006116 (q=2), A006117, A006118, A006119, A006120, A006121, A006122, A006099, A006098, A006104, A006103, A006109, A006108, A006115

Gaussian binomial coefficients: (2): A006114, A006095, A006100, A006096, A006105, A006097, A006111, A006101, A006110, A006106, A006102, A006112, A006107, A006113

Gaussian binomial coefficients: A006516* (Maple code)

Gaussian binomial coefficients: A022166 (triangle of, q=2)

Gaussian binomial coefficients: see also A006516

Gaussian integers and primes , sequences related to :

Gaussian integers and primes (1): A002145 A006495 A006496 A027206 A036693 A036694 A036695 A036696 A036697 A036698 A036699 A036700

Gaussian integers and primes (2): A036701 A036702 A036703 A036704 A036705 A036706 A036707 A036708 A036709 A036710 A036711 A036712

Gaussian integers and primes (3): A036713 A036714 A036715 A036716 A045326 A055025 A055026 A055027 A055028 A055029 A055683 A057352

Gaussian integers and primes (4): A057368 A057429 A058767 A058770 A058771 A058772 A058775 A058777 A058778 A058779 A058782 A062327

Gaussian integers and primes (5): A062711 A073253 A078458 A078908 A078909 A078910 A078911

Gaussian primes: A055025, A055026, A055027, A055028, A055029

Gaussian primes: see also entries under Gaussian integers

GCD , sequences related to :

GCD(x,y): A003989*, A050873*, A072030*

GCD, greedy sequence: see EKG sequence

GCD: A007464, A006579

GCD: the canonical spelling for "greatest common divisor" in the OEIS is GCD (not gcd) (except of course in Maple and PARI lines)

gcd: the canonical spelling for "greatest common divisor" in the OEIS is GCD (not gcd) (except of course in Maple and PARI lines)

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ge

generalized Fermat primes: see primes, Fermat, generalized

generalized Fermat primes: see primes, generalized Fermat

generated by substitutions:: A001030, A007001, A006697, A006977, A006978

generating functions , sequences related to :

generating functions of the form (1+x)/(1-kx) for k=1 to 12: A040000, A003945, A003946, A003947, A003948, A003949, A003950, A003951, A003952

generating functions of the form (1+x)/(1-kx) for k=13 to 30: A170732 A170733 A170734 A170735 A170736 A170737 A170738 A170739 A170740 A170741 A170742 A170743 A170744 A170745 A170746 A170747 A170748

generating functions of the form (1+x)/(1-kx) for k=31 to 50: A170749 A170750 A170751 A170752 A170753 A170754 A170755 A170756 A170757 A170758 A170759 A170760 A170761 A170762 A170763 A170764 A170765 A170766 A170767 A170768 A170769

generating functions of the form 1/(1-kx+x^2) or x/(1-kx+x^2): A000027, A001906, A001353, A004254, A001109, A004187, A001090, A018913, A004189, A004190, A004191, A078362, A007655, A078364, A077412, A078366, etc.

generating functions of the form Prod_{k>=0} (1+a*x^(b^k)) for the following values of (a,b): (1,2) A000012 and A000027, (1,3) A039966 and A005836, (1,4) A151666 and A000695, (1,5) A151667 and A033042, (2,2) A001316, (2,3) A151668, (2,4) A151669, (2,5) A151670, (3,2) A048883, (3,3) A117940, (3,4) A151665, (3,5) A151671, (4,2) A102376, (4,3) A151672, (4,4) A151673, (4,5) A151674

generating functions of the form Prod_{k>=c} (1+a*x^(2^k-1)+b*x^2^k)) for the following values of (a,b,c): (1,1,0) A160573, (1,1,1) A151552, (1,1,2) A151692, (2,1,0) A151685, (2,1,1) A151691, (1,2,0) A151688 and A152980, (1,2,1) A151550, (2,2,0) A151693, (2,2,1) A151694

generating functions, rational: see recurrences, linear

generating functions satisfying a cubic: A001764 A007863 A036759 A036765 A078531 A088927 A067955 A102403 A120984 A120985 A128725 A128729 A128736

generating functions satisfying equations of the form A(x)=1+zA(x)^k: A002293-A002296, A007556, A062994, A062744

generating functions satisfying equations of the form r*A(x) = c + b*x + A(x)^n: A120588 - A120607

generating functions, for definition see Wikipedia article

Genocchi medians: A005439

Genocchi numbers , sequences related to :

Genocchi numbers: A001469*, A036968

Genocchi numbers: see also A002317

genus , sequences related to :

genus, of modular group, A001617, A001767

genus-1:: A006387, A006386, A006295, A006297, A006296

genus:: A003639, A003638, A000933, A003636, A003637, A003171, A003644, A005527, A000934, A005431, A005525, A005526, A006298, A006299, A006301

geometrical configurations: see configurations

geometric sequences: see recurrences, linear, order 01

geometries , sequences related to :

geometries : A002773*, A004069, A031501

geometries, linear: A001200*, A001548* (connected), A005426

geometries: see also matroids

Germain primes: see primes, Germain

German: A007208, A037199, A037200, A001061

German: see also Index entries for sequences related to number of letters in n

GF(2)[X]-polynomials , sequences containing or operating on, :

GF(2)[X]-polynomials , sequences containing or operating on, (These sequences assume that the GF(2)[X]-polynomial is encoded in binary expansion of n like this: n=11, 1011 in binary, stands for polynomial x^3+x+1, n=25, 11001 in binary, stands for polynomial x^4+x^3+1)

GF(2)[X]-polynomials, addition table, i.e. XOR(x,y), A003987

GF(2)[X]-polynomials, bijections from/to natural numbers, preserving multiplicative structures, A091202-A091203, A091204-A091205

GF(2)[X]-polynomials, GCD(x,y), table of, A091255

GF(2)[X]-polynomials, irreducible and also prime in N, A091206

GF(2)[X]-polynomials, irreducible and non-primitive, A091252

GF(2)[X]-polynomials, irreducible and primitive, A091250*, A058947, A011260

GF(2)[X]-polynomials, irreducible but composite in N, A091214

GF(2)[X]-polynomials, irreducible, A014580*, A058943, A001037

GF(2)[X]-polynomials, irreducible, characteristic function, A091225

GF(2)[X]-polynomials, irreducible, order of each, A059478

GF(2)[X]-polynomials, LCM(x,y), table of, A091256

GF(2)[X]-polynomials, Matula-Goebel-tree analogues, A091238, A091239, A091240

GF(2)[X]-polynomials, Moebius-analogue, A091219

GF(2)[X]-polynomials, multiples of x+1, A048724

GF(2)[X]-polynomials, multiples of x+1, shifted once right, A003188

GF(2)[X]-polynomials, multiples of x^2+1, A048725

GF(2)[X]-polynomials, multiples of x^2+x+1, A048727

GF(2)[X]-polynomials, multiples of x^2+x, A048726

GF(2)[X]-polynomials, multiplication table, A048720, A091257

GF(2)[X]-polynomials, number of distinct irreducible divisors, A091221

GF(2)[X]-polynomials, number of divisors, A091220

GF(2)[X]-polynomials, number of irreducible divisors, A091222

GF(2)[X]-polynomials, of the form x^n+1, A000051

GF(2)[X]-polynomials, of the form x^n+1, number of distinct irreducible divisors, A000374

GF(2)[X]-polynomials, of the form x^n+1, number of irreducible divisors, A091248

GF(2)[X]-polynomials, powers of x+1, A001317

GF(2)[X]-polynomials, powers of x^2+1, A038183

GF(2)[X]-polynomials, powers of x^2+x+1, A038184

GF(2)[X]-polynomials, powers, table of, A048723

GF(2)[X]-polynomials, quasi-factorial analogue, A048631

GF(2)[X]-polynomials, reducible and also composite in N, A091212

GF(2)[X]-polynomials, reducible but prime in N, A091209

GF(2)[X]-polynomials, reducible, A091242, A091254

GF(2)[X]-polynomials, smallest m >= n, such that polynomial with code m is irreducible, A091228

GF(2)[X]-polynomials, squares, A000695

GF(2)[X]-polynomials: see also Trinomials over GF(2)

gf.: see generating functions

Gijswijt's sequence , sequences related to :

Gijswijt's sequence: A090822

Gijswijt's sequence: generalizations: A091975, A091976, A092331-A092335

Gijswijt's sequence: generalizations: A094321 (greedy version of second-order sequence)

Gijswijt's sequence: generalizations: A094781 (two-dim. version)

Gijswijt's sequence: see also under curling number transform

Gilbreath's conjecture, sequences related to :

Gilbreath's conjecture: A036262*, A036261

girth: see graphs, girth of

Giuga numbers: A007850*

Glaisher numbers, sequences related to :

Glaisher's chi numbers: A002171*, A002172

Glaisher's G numbers: A002111*

Glaisher's H numbers: A002112*

Glaisher's H' numbers: A002114*

Glaisher's I numbers: A047788*/A047789*

Glaisher's J numbers: A002325*

Glaisher's T numbers: A002439*, A002811

glass worms: see vers de verres

Gleason's theorem: A008621, A008620

gluons: A005415

glycols: A000634

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Go

Go games: A007565* A048289* A096259

goat problem:

goat problem: A173201, A133731, A075838, A173571, A191102, A192930

Goedel, Escher, Bach, sequences related to :

Goedel, Escher, Bach: A005185, A005206, A005228, A005374, A005375, A005376, A005378, A005379, A006877, A006878, A006884, A006885, A030124, A033958, A033959

Goedel, Escher, Bach: see also Hofstadter-type sequences

Goellnitz's theorem: A056970

Golay codes, sequences related to :

Golay codes: A001380*, A002289, A105683*, A105684

Golay-Rudin-Shapiro sequence: A020985*, A020987*

Goldbach conjecture, sequences related to :

Goldbach conjecture: A001031*, A002372*, A002373*, A002374*, A002375*, A045917*, A006307*

Goldbach conjecture: see also (1): A001172, A002091, A002092, A007697, A008929, A008932, A014092, A016067, A025017, A025018, A025019, A042978, A045917

Goldbach conjecture: see also (2): A045919, A045922, A046903, A046920, A046921, A046922, A046923, A046924, A046925, A046926, A046927

Goldbach conjecture: see also (3): A051034, A025583, A000607, A051345, A007534, A065577, A185297, A187129, A186201

golden ratio phi , sequences related to :

golden ratio phi (or tau) = (1+sqrt(5))/2: A001622* (decimal expansion), A000012* (continued fraction)

golden ratio phi (or tau) = (1+sqrt(5))/2: binary expansion: A068432, A004714, A169868, A004555

golden ratio phi (or tau): see also A002390, A007572

golden sieve: see sieve, golden

Golomb rulers , sequences related to :

Golomb rulers : A003022* (length of), A036501* (number of), A039953* (triangle of minimal), A078106 (missed distances), A054578 (number of)

Golomb rulers, optimal, with 4 through 23 marks: (1) A079283 & A031869, A079287 & A031870, A079423 & A031871, A079425 & A031872, A079426 & A031873,

Golomb rulers, optimal, with 4 through 23 marks: (2) A079430 & A031874, A079433 & A031875, A079434, A079435, A079454, A079467

Golomb rulers, optimal, with 4 through 23 marks: (3) A079604, A079605, A079606, A079607, A079608, A079625, A079634

Golomb rulers: see also additive bases

Golomb's sequence: A001462*

golygons: A006718*, A007219*

good numbers: A000696

Goodstein sequences: A056041 A056004 A059934 A057650 A056193 A059933 A059935 A059936

gossip problem: A007456*, A058992

Gould's sequence: A001316*

gp: see PARI

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Gra

graceful: see graphs, graceful

Graham, Ron's sequence: A006255, A066400, A066401

Gram points: A002505

grandchildren of a binary vector: A057606, A057607, A000124

graph reconstruction problem: A006652, A006653, A006654, A006655

graphical partitions , sequences related to :

graphical partitions: A000569 A001130 A004250 A004251 A007721 A007722 A029889 A029890 A029891 A029892 A029893 A029894

graphs , sequences related to :

graphs : A000088* (unlabeled), A008406* (unlabeled); A006125* (labeled), A000664, A006896, A006897, A007111, A008406

graphs, 2-connected: A002218*, A021103*

graphs, 3-connected, planar: A000109*, A049337*, A000944*, A005645*, A002880*

graphs, 3-connected, planar: see also A006445, A007083, A007084, A007085, A047051

graphs, 3-connected: A006290*, A052444*, A005644*, A007100*

graphs, 4-valent: A005815, A005816

graphs, acyclic directed: A003087* (labeled), A003024 (labeled)

graphs, asymmetric: A003400

Graphs, balanced, A005194, A005193

Graphs, bicolored, A007140, A007139

graphs, biconnected: see graphs, 2-connected

Graphs, bipartite, A006823, A006612, A005142*, A004100, A001832, A006824, A006825, A006714

graphs, bipartite, by number of edges: A000217 A050534 A053526 A053527 A053528

graphs, bipartite: A033995*, A005142* (connected)

graphs, blocks: see graphs, nonseparable

graphs, bridgeless: A007146*, A007145

graphs, broadcast: A007192

Graphs, by cliques, A005289

Graphs, by cutting center, A002887

graphs, by girth: (1) A000066 A006787 A006856 A006923 A006924 A006925 A006926 A006927 A014371 A014372 A014374 A014375

graphs, by girth: (2) A014376 A033886 A037233 A054760 A058275 A058276 A058343 A058348

graphs, by numbers of nodes and edges: A008406

graphs, cage: A052453, A052454

graphs, Cayley: A000022 A000200 A006792 A006793 A049287 A049289 A049297 A049309

graphs, chordal: A007134*, A058862*

graphs, claw-free: A022562* (connected), A022563, A022564

Graphs, colored, A002027, A002031, A002032, A002028, A000684, A002029, A002030, A000685, A005333, A000683, A000686, A006201, A005334, A006202

graphs, common symbols for: C_n: The cycle graph on n vertices

graphs, common symbols for: D_4: The graph on 4 vertices with the edges {1,2}, {1,3}, {2,3} and {1,4}

graphs, common symbols for: K_n: The complete graph on n vertices

graphs, common symbols for: O_5: The K_5 graph with one edge removed

graphs, common symbols for: O_6: The octahedral graph

graphs, common symbols for: P_n: The path graph on n vertices

graphs, common symbols for: S_4: The star (or complete bipartite) graph on 4 vertices with the edges {1,2}, {1,3} and {1,4}

graphs, common symbols for: S_5: The star (or complete bipartite) graph on 5 vertices

graphs, common symbols for: W_4: The graph on 4 vertices with the edges {1,2}, {1,3}, {2,3}, {2,4} and {3,4}

graphs, common symbols for: W_5: The graph on 5 vertices with the edges {1,2}, {1,3}, {1,4}, {1,5}, {2,3}, {2,5}, {3,4} and {4,5}

Graphs, complete, A000933, A000241, A007333, A006600

Graphs, complexity of, A006237, A006235

graphs, connected : A001349* (unlabeled), A054923*, A046742* (unlabeled); A001187* (labeled); A003094* (planar)

graphs, connected : table of by numbers of edges and nodes: A046742*, A054923*

graphs, connected labeled, with n edges and n+k nodes for k=0..8: A057500 A061540 A061541 A061542 A061543 A096117 A061544 A096150 and A096224

graphs, connected regular, see graphs, regular connected

Graphs, connected, A005703, A001429, A001437, A005636, A002905, A000226, A004108, A006290, A007112, A000368, A001436, A001435, A001866

graphs, connected, by number of edges: A002905*, A046091 (connected planar), A066951

graphs, crossing number of: see crossing numbers of graphs

graphs, cubic: see graphs, trivalent

Graphs, cutting numbers of, A002888

Graphs, cycle, A007389, A007388, A007387, A007391, A007390, A007392, A007393, A007394

Graphs, cycles in, A006184

Graphs, de Bruijn, A006946

Graphs, degree sequences of, A005155

graphs, directed, see digraphs

Graphs, disconnected, A000719

Graphs, Euler, A002854

Graphs, Eulerian, A007124, A007127, A007128, A007131, A007132, A007129, A007125, A005143, A007081, A005780, A003049, A007126, A007130, A007133

graphs, even: A001188*

Graphs, functional, A001373

Graphs, genus of, A000933

graphs, girth of: (1) A000066 A006787 A006856 A006923 A006924 A006925 A006926 A006927 A014371 A014372 A014374 A014375

graphs, girth of: (2) A014376 A033886 A037233 A054760 A058275 A058276 A058343 A058348 A058861

graphs, graceful: A004137 A005488 A006967 A033472

graphs, graceful: A004137 A005488 A033472

graphs, Hamiltonian cycles on square grid: A003763, A120443, A140519, A140521

graphs, Hamiltonian, on the n-cube: see also Gray codes

graphs, Hamiltonian: (1) A000103 A000264 A000356 A001186 A001906 A003042 A003043 A003122 A003123 A003216 A003435 A003436

graphs, Hamiltonian: (2) A003437 A005144 A005389 A005390 A005391 A005979 A006069 A006070 A006791 A006795 A006796 A006797

graphs, Hamiltonian: (3) A006798 A006864 A006865 A007030 A007031 A007032 A007033 A007035 A007036 A007083 A007084 A007085

graphs, Hamiltonian: (4) A022564 A027362 A031878 A049366 A057112 A060135 A063546

graphs, Hamiltonian: see also rook tours

Graphs, independence number of, A006946

Graphs, independent sets in, A007386, A007385, A007384, A007391, A007383, A007382, A007390, A007392, A007393, A007394

graphs, inseparable: see graphs, nonseparable

Graphs, interval, A005217, A007123, A005975, A007122, A005219, A005976, A005977, A005215, A005218, A005978, A005974, A005216, A005973

graphs, interval: see interval graphs

graphs, irreducible: A005643

graphs, K_4-free: A052450, A052451

graphs, least number of edges in: A004401

graphs, line: A003089

graphs, mating: A006024

graphs, misleading: see deceptive plots

graphs, Moore: A005007*

graphs, nonseparable (or blocks): A002218*, A003317*, A004115*, A013922*, A001072, A054316, A054317, A006290

Graphs, of maximal intersecting sets, A007007, A007008, A007006

Graphs, oriented, A002785, A005639, A007081, A007110, A007109

Graphs, partition, A007269, A007268

Graphs, path, A007381, A007380, A007386, A007385, A007384, A007383, A007382

graphs, perfect: A052431*, A052433

Graphs, planar, A006401, A006400, A003094, A006791, A003055, A006395, A006394, A005964

graphs, planar: A002841 (self-dual)

graphs, planar: A005470* (unlabeled), A066537* (labeled), A096332* (connected labeled)

graphs, planar: A049334* and A003094* (connected), A049336* and A021103* (2-connected), A049337* and A000944* (3-connected)

graphs, planar: see also maps, planar

graphs, planar: see also planar vs plane

graphs, planar: see also A007083, A007084, A007085, A034889

graphs, plane: see also planar vs plane

graphs, pointed: see graphs, rooted

Graphs, polygonal, A002560

Graphs, polyhedral, A007026, A002840, A007024, A006866, A007029, A006867, A006869, A000287, A007027, A007025, A007028

Graphs, radius of, A007008

graphs, regular connected, of degree k: A002851 (k=3); A006820 (k=4); A006821 (k=5); A006822 (k=6); A014377 (k=7); A014378 (k=8); A014381 (k=9); A014382 (k=10); A014384 (k=11)

Graphs, regular, A005176, A005177, A006820, A006821, A006822

graphs, rooted, triangle of: A070166

graphs, see also 1-factorizationsttice

graphs, see also: A000717, A003083, A004252, A005273, A005274, A005275, A007149

Graphs, self-complementary, A000171, A002785

Graphs, self-converse, A005639

Graphs, self-dual, A002841, A004104

graphs, series-parallel: see series-parallel networks

Graphs, series-reduced, A003514, A002935, A006289, A003515

Graphs, signed, A004104, A004102

Graphs, spectra of, A006608

Graphs, splittance of, A007183

Graphs, squarefree, A006786, A006855

Graphs, stable, A006545

Graphs, star, A002935

Graphs, Steinhaus, A003660, A003661

Graphs, tensor sum of, A006237

Graphs, transitive, A006799*, A006800

graphs, triangle of numbers of, connected, unlabeled: A054924*, A046751, A076263, A054923, A046742

Graphs, triangle-free, A006785, A006903

graphs, triangle: A000080*

Graphs, triangles in, A006600

graphs, triangulated: A007134*

graphs, trivalent: A005638*, A002851* (connected), A032355* (transitive), A059282* (symmetric)

Graphs, trivalent:: see also A006796, A006797, A000066, A005967, A002851, A005638, A003175, A006795, A005814, A002831, A006798, A006607, A002830, A006713, A006712, A006188, A006714, A007101, A007103, A007102, A007100, A007099, A004109, A002829

Graphs, unicyclic, A006545

Graphs, valence of, A007007

Graphs, vertex-degree sequences of, A006869

Graphs, vertex-transitive, A006792, A006793

graphs, with loops, triangle of: A070166

graphs, with n nodes and n-k edges: A001434, A001433, A001430, A001431, A001432, A000717, A048179, A008406

Graphs, with no isolated vertices, A006648, A006649, A002494, A006647, A006651, A006650

Graphs, without endpoints, A004110

Graphs, without points of degree 2, A005637

graphs: see also tournaments

grasshopper sequence: A007319

Gray codes, sequences related to :

Gray codes: A003042, A003043, A006069, A006070, A091299, A091302, A066037

Gray codes: A005811, A003100, A003188, A014550, A006068

Gray codes: see also bell ringing

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Gre

greatest common divisor: see entries under GCD

greatest prime divisor: A006530

greatest prime factor: A006530

Greedy algorithm:: A006892, A006894, A006893

greedy GCD sequence: see EKG sequence

greedy rational packing sequence: A066720*, A066721*, A066775, A066657/A066658, A066848, A066849

Green's function , sequences related to :

Green's function:: A003301, A003283, A003299, A003282, A003302, A003280, A003284, A003300, A003298, A003281

greengrocer's numbers: A002412*

Greg trees: see trees, Greg

Grids:: A005418, A007543, A007544

Grossman's constant: A085835

group: see groups

groupoids , sequences related to :

groupoids , (This word has several different interpretations!)

groupoids , A001329* (unlabeled) A001424 A002489* (labeled) A079171

groupoids, 1 idempotent: A030253* A030254 A030255 A030263 A030264 A030265 A030271

groupoids, anti-associative: A079179 A079180 A079181

groupoids, anti-commutative: A079189 A079190 A079191

groupoids, as categories with inverses, connected: A140185, A140186, A140187

groupoids, as categories with inverses: A140188, A140189, A140190

groupoids, associative: see semigroups

groupoids, asymmetric: A030245* A030248 A030251 A030255 A030258 A030261 A030264 A030271 A038019 A038022 A038023

groupoids, by idempotents: A038018* A038019 A038020 A038021 A038022 A038023

groupoids, commutative (1): A001425* (unlabeled) A023813* (labeled) A030256 A030257 A030258 A030259 A030260 A030261 A030262 A030263 A030264 A030265

groupoids, commutative (2): A038016 A038017 A076113 A038021 A038022 A038023 A079185 A079195 A079196 A079197 A090598 A090599

groupoids, idempotent: A030247* (unlabeled) A030248 A030249 A030257 A030258 A030259 A038015 A038017 A076113 A090588* (labeled)

groupoids, no idempotents: A030250* A030251 A030252 A030260 A030261 A030262

groupoids, non-anti-associative: A079176 A079177 A079178

groupoids, non-anti-commutative: A079186 A079187 A079188

groupoids, non-associative: A079172 A079173 A079174 A079192 A079193 A079194 A079195 A079196 A079197

groupoids, non-commutative: A079182 A079183 A079184 A079192 A079193 A079194

groupoids, pointed: A006448* A038015 A038016 A038017

groupoids, see also: A079202 A079203 A079204 A079206

groupoids, self-converse: A029850* A090604

groupoids, symmetric: A030246 A030249 A030252 A030254 A030256 A030259 A030262 A030265 A038020

groupoids, with identity: A090598 A090599 A090600 A090601* A090602* A090603 A090604

groupoids: see also: groups

groupoids: see also: quasigroups

groupoids: see also: semigroups

groups , sequences related to :

groups, A000001* (number of groups of order n), A000679* (number of order 2^n), A034383*

groups, abelian, every group of this order is: A051532

groups, abelian: A000688*, A034382*, A046054-A046056, A050360, A051532

groups, alternating: A000702, A001710, A007002

groups, alternating: see also alternating group A_m, degrees of irreducible representations of

groups, automorphism group of: A059773

groups, binary icosahedral: A008651

groups, binary octahedral: A008647

groups, braid, see braids

Groups, chain of subgroups in S_n, A007238

groups, conjugacy classes: A073043*, A003061*, A002319*, A006379*, A000702, A000638, A029726, A045615, A006951, A006952, A003606

groups, crystallographic: see groups, space

groups, cyclic (1): A001034 A001443 A002956 A006204 A006205 A006379 A007687 A007688 A008610 A008611 A008646

groups, cyclic (2): A008976 A009490 A019536 A034381 A037221 A046072 A047680 A049287 A049288 A049289 A049297 A049309

groups, cyclic (3): A051625 A051636 A053651 A053658 A053660 A054522 A057731

groups, cyclic, every group of this order is: A003277, A050384

Groups, dihedral, A007503

groups, Euclidean: see groups, space

groups, free abelian: A007322

Groups, general linear, A006952, A006951, A003606

Groups, generators for, A001691

Groups, invariants of, A002956

groups, labeled: A034381, A034382, A034383*, A058161-A058163

groups, least inverse, A046057

Groups, Lorentzian, A005793, A005794

groups, maximal number of subgroups in: A018216, A061034, A083573

groups, modular : sequences related to :

groups, modular: (1) A001766 A001767 A004048 A005133 A005793 A005794 A027364 A027633 A027634 A027638 A027639 A027672

groups, modular: (2) A037944 A037945 A037946 A037947 A054886 A063759 A001617

groups, Monster simple group: see Monster simple group

Groups, multiplicative, A007230, A007232, A007233, A007231

groups, nilpotent, every group of this order is: A056867, A056868

groups, nonabelian: A060689*, A003061

groups, number of, A000001*, A060689*, A000679, A046057, A046058, A046059

groups, of order n: A000001, 2^n: A000679, 3^n: A090091, 5^n: A090130, 7^n: A090140

groups, of Rubik cubes: see under Rubik cube

groups, of tournaments: see tournaments

groups, only one of this order: A003277, A050384

Groups, orthogonal, A003053

groups, perfect: A060793

groups, permutation, primitive: A000019*, A023675*

groups, permutation, transitive: A002106*, A023676*

groups, permutation: A000637*, A000638*, A005432*

groups, pointed: A126103, A126102

groups, see also: A046058, A046059, A053403

groups, shuffle: A007346 A014525 A014766 A014767

groups, simple: A005180* (orders of), A001034* (orders of noncyclic), A001228* (sporadic), A008976

groups, simple: see also A006379

groups, solvable, every group of this order is: A056866

groups, space: A004029*, A006227*, A004027*, A004028*, A006226, A005031, A007308

Groups, symmetric, A000701, A003040, A007234, A005012, A001691

groups, symmetric: see also symmetric group S_m, degrees of irreducible representations of

groups, tiling: see groups, space

Grundy's game, sequences related to :

Grundy's game: A002188, A036685, A036686

Gudermannian: A028296*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ha

h.c.p. (hexagonal close packing), sequences related to :

h.c.p., coordination sequence: A007899

h.c.p., crystal ball sequence: A007202

h.c.p., numbers represented by: A005870

h.c.p., theta series of: A004012*, A005871, A005872, A005873, A005874, A005888, A005889, A005890

h.c.p.: see also A019298

Hadamard matrices , etc., sequences related to :

Hadamard matrices, excess of: A004118

Hadamard matrices, mass of: A048615*/A048616*

Hadamard matrices, number of: A007299*, A036297*

Hadamard matrices, orders of: A019442

Hadamard matrices, regular: see A016742

Hadamard maximal determinant problem: A003432*, A003433, A036297, A051753

half-totient function: A023022

Halving:: A003155, A006577

Hamilton , sequences related to :

Hamilton cycles, paths, graphs: see graphs, Hamiltonian

Hamilton numbers: A000905*, A002090, A006719

Hamiltonian cycles: see graphs, Hamiltonian

Hamiltonian graphs: see graphs, Hamiltonian

Hamiltonian paths or cycles on the n-cube: see also Gray codes

Hamiltonian paths: see graphs, Hamiltonian

Hamiltonian polyhedra: see graphs, Hamiltonian

Hamming sequence: A051037

Hankel function: A002514

Hannah Rollman's numbers: A048992*

Hanoi, see Towers of Hanoi

happy factorizations: A007696, A007697, A007698

happy numbers: A007770*, A038497, A001273

happy numbers: see also A031177, A068571, A046519, A035502, A035503, A055629

Harary and Palmer, Graphical Enumeration, sequences found in

hard-hexagon model: A007236

harmonic , sequences related to :

harmonic coefficients, triangle of: A027858

harmonic means: (1) A001599 A001600 A006086 A006087 A007340 A046793 A046794 A046795 A046796 A046797 A053626 A053627

harmonic means: (2) A053628 A053629 A055081 A056136

harmonic numbers: A001599*, A001008*/A002805*, A035527

harmonic numbers: see also A001600, A008380, A035047 A035048 A046024 A051046 A052488 A055573

harmonic series, odd: A074599/A025547

harmonic series: A002387*, A004080*

harmonic series: see also A004796, A004980

harmonic triangle of Leibniz: A003506*

harmonic triangle of Leibniz: see also A002457 A007622 A046200 A046201 A046202 A046203 A046204 A046205 A046206 A046207 A046208 A046212

Harshad numbers: A005349*

Harvey Friedman's sequence: see A014221

Hauptmodul series: A007325

Havender tableaux: A007345

HCF (highest common factor) is written as GCD (greatest common divisor) in the OEIS

hcf (highest common factor) is written as GCD (greatest common divisor) in the OEIS

HCF: the canonical spelling in the OEIS is GCD (nor HCF or gcd) for "greatest common divisor"

hcf: the canonical spelling in the OEIS is GCD (nor hcf or gcd) for "greatest common divisor"

hcp: see h.c.p

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_He

Heawood conjecture, sequences related to :

Heawood conjecture: A000934*

Hebrew: A0A027684

Hebrew: see also Index entries for sequences related to number of letters in n

Heegner numbers: A003173

hendecagon is spelled 11-gon in the OEIS

heptagonal numbers: A000566*

heptagonal pyramidal numbers: A002413*

Hermite constant: A007361*/A007362*

Hermite polynomials, sequences related to :

Hermite polynomials, A060821*

Hermite polynomials, diagonals, A001816

Hermite polynomials, discriminant, A054374

Hermite polynomials, inverse coefficients, A001814, A047974, A067147*

Hermite polynomials, resultants, A054373

Hermite polynomials, row sums: A000898, A062267*

Hermite polynomials, unitary, A066325*

Hermite polynomials: see also A000321, A025165

Hertzsprung's problem: A002464*

hex numbers: A003215*, A006062, A006244, A006051

hexaflexagons, sequences related to :

hexaflexagons: A000207*, A007282*, A007499, A057162, A001683*, A000108, A112385

hexaflexagrams: see hexaflexagons

hexagonal , sequences related to :

hexagonal close packing: see h.c.p

hexagonal lattice: see A2 lattice

hexagonal numbers: A000384*, A003215* (centered)

Hexagonal prism:: A005914, A005915

hexagonal pyramidal numbers: A002412

Hexanacci numbers:: A001592, A000383

hierarchies, sequences related to :

hierarchies: A075729*, A000670, A075744, A075900, A075756, A000629, A075792

hierarchies: see also orders

highest common factor (hcf) is written as GCD (greatest common divisor) in the OEIS

highly abundant numbers: A002093*

highly composite numbers: A002182*, A002473*

highly composite numbers: see also A000705, A002201, A002498, A002497, A002037, A117825

highly powerful numbers, see also powerful numbers

highly powerful numbers: A005934*

Hilbert series: see Molien series

Hindi: see also Index entries for sequences related to number of letters in n

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ho

Hofstadter , sequences related to :

Hofstadter Q-sequence: A005185

Hofstadter-Conway $10,000 challenge sequence: A004001*

Hofstadter-type sequences: (1) A002024 A004001 A005185 A005206 A005228 A005374 A005375 A005376 A005378 A005379 A046699 A055748

Hofstadter-type sequences: (2) A006949 A070864 A070867 A070868

Hofstadter-type sequences: see also entry for Goedel, Escher, Bach

Hofstadter-type sequences: see also entry for sequence and first differences include all numbers, etc.

Hoggatt sequences:: A005362, A005363, A005364, A005365, A005366

holes, sequences related to :

holes:: A000104, A006986, A005882, A005873, A004024, A005927, A005883, A005886, A005872, A005887, A001419, A005878, A005879, A004017, A004034

home primes: see primes, home

honeycomb, sequences related to :

honeycomb:: A006743, A006774, A007214, A003204, A002910, A001668, A006851, A002978, A003199, A005396, A007206, A002912, A003200, A192871

horse problem: see goat problem

humble numbers: A002473

Hungarian cube: see Rubik cube

Hungarian: A007292

Hungarian: see also Index entries for sequences related to number of letters in n

Hurwitz numbers: A002306/A047817

Hurwitz-Radon numbers, sequences related to :

Hurwitz-Radon numbers: A003484*, A003485, A053381

hydrocarbons , sequences related to :

hydrocarbons : A000602*, A002986

hydrocarbons, bicentered: A000200*

hydrocarbons, centered: A000022*

hyperbinomial transform: A088956

hyperfactorials: A002109*

hypergraphs, uniform: A000665, A051240, A092337

hyperperfect numbers: A007592*, A007593, A007594, A034897*

hyperplane arrangements: A005840

Hypertournaments:: A006250, A006249

hypothenusal numbers: A001660*

hypotheses, n-dimensional: A005465

hypotheses: A005465

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ia

I Ching: A102241, A125638, A092943 icosahedron, sequences related to :

icosahedron, icosahedral numbers: A006564*, A005902

icosahedron: A005901, A006564*, A005902

icosahedron: see also A030136 A030138 A030517 A030518 A054472 A054884 A054885 A064521 A066404 A071398 A071402

idempotents: A007185, A016090

idoneal numbers: see Index entries for sequences related to Euler's idoneal numbers

If n appears 2n doesn't, etc.:: A007417, A005658, A003159*, A002977, A005660, A005659, A007319, A005662, A005661

ifactor (Maple): A035306

ifactors (Maple): A035306

Imaginary parts:: A006496

imaginary quadratic fields, see quadratic fields, imaginary

Impedances:: A003129, A003128, A003130

Impossible values:: A005114

impractical numbers: A007621*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_In

Incidence matrices:: A002725, A002728

increasing blocks of digits: sequences related to :

increasing blocks of digits: A001114, A001369, A098967

increasing blocks of digits: see also slowest increasing sequences

Indefinitely growing:: A006745

Independence number:: A006946

Independent sets:: A007380, A007388, A007387, A007386, A007385, A007384, A007391, A007383, A007382, A007390, A007392, A007393, A007394

Infinitary perfect:: A007358, A007357

infinitesimal generators: A005119

initial digits , sequences related to initial digits of numbers :

initial digits: (1) A000030 A002993 A002994 A008963 A038546 A045509 A045510 A045511 A045516 A045517 A045518 A045519

initial digits: (2) A045520 A045521 A045522 A045523 A045524 A045525 A045526 A045527 A045528 A045725 A045726 A045727

initial digits: (3) A045728 A045729 A045730 A045731 A045732 A045733 A045784 A045785 A045786 A045787 A045788 A045789

initial digits: (4) A045791 A045792 A045793 A045855 A045856 A045857 A045858 A045859 A045860 A045861 A045862 A045863

initial digits: (5) A047658 A057563

integers, Gaussian, see Gaussian integers

integers: A000027*

integral points:: A002789, A002579, A002578

integral, sequences related to "integral" :

Integral: the style used for integrals in the OEIS is illustrated by: Integral_{ x = 2..infinity } 1/log(x) dx or Integral_{ x = 2..infinity } 1/log(x)

integral: the style used for integrals in the OEIS is illustrated by: Integral_{ x = 2..infinity } 1/log(x) dx or Integral_{ x = 2..infinity } 1/log(x)

Integrals:: A001757, A001193, A001194, A001756

Integrate: the style used for integrals in the OEIS is illustrated by: Integral_{ x = 2..infinity } 1/log(x) dx or Integral_{ x = 2..infinity } 1/log(x)

integrate: the style used for integrals in the OEIS is illustrated by: Integral_{ x = 2..infinity } 1/log(x) dx or Integral_{ x = 2..infinity } 1/log(x)

interprimes: A024675

interprimes: see also A072568, A072569

intersections of diagonals: see Poonen-Rubinstein paper

interval graphs , sequences related to :

interval graphs: A005215, A005216, A005217, A005218, A005219, A005973, A005974, A005975, A005976, A005977, A005978, A007122, A007123

interval orders: A000763, A005410, A049463, A022493

interval schemes: A005213

intervals, relations between: A055203*

Invariants:: A007478, A002956, A000807, A007293, A007043

INVERT transform, sequences related to :

INVERT transform: (1) A000107 A002426 A007564 A007971 A023359 A030017 A030018 A030238 A033453 A049037 A051529 A051573

INVERT transform: (2) A055372 A055373 A055374 A055887 A055888 A057547

INVERT transform: see Transforms file

Irish Gaelic: see also Index entries for sequences related to number of letters in n

Irish: A001368

irreducible polynomials: A001037*

irreducible polynomials: see also trinomials over GF(2)

irreducible representations, degrees of: see degrees of irreducible representations

irregular primes: A000928

isogons: A007219

isthmuses: A006398, A006399

Italian: A026858

Italian: see also Index entries for sequences related to number of letters in n

Iterated exponentials:: A000154, A000258, A000307, A000310, A000357, A000359, A000405, A000406, A001669, A001765

Iterates of number-theoretic functions:: A002217, A005424, A003271

i^i: A049007*, A0049006*, A006228

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_J

J-function: A000521*, A007240, A014708

J2 simple group: A003905, A005813

Jack Benny: A056064

Jacobi elliptic function sn: A004005, A060628

Jacobi nome, sequences related to :

Jacobi nome: A005797, A002639/A119349, A002103

Jacobi nome: see also (1) A000700 A001936 A004011 A005798 A007247 A007248 A007267 A014969 A029839 A029845 A078791 A081360

Jacobi nome: see also (2) A083365 A107035 A113184 A115977 A124863 A124972 A132136 A134746 A134747 A139820

Jacobi symbol: A034947 = (-1,n)

Jacobi symbol: see also A005825 A005826 A005827 A077008 A077009 A077010

Jacobi theta series: theta_2(q): A098108, theta_3(q): A000122, theta_4(q): A002448

Jacobi triple product identity: A000122*

Jacobsthal sequence: A001045*

Jacobsthal-Lucas numbers: A014551*

Japanese: see also Index entries for sequences related to number of letters in n

jeep problem: see A025547, A025550, A075135

join points around circle: see Poonen-Rubinstein paper

joke numbers: A006753

Jordan algebras: A001776

Jordan function J_k: A000010, A007434, A059376, A059377, A059378, A069091, A069092, A069093, A069094, A069095

Jordan function ratios J_k/J_1: A001615, A160889, A160891, A160893, A160897, A160908, A160953, A160957, A160960, A160972, A161010, A161025, A161139, A161167, A161213

Jordan-P\'{o}lya numbers:: A001013

Josephus problem: (1) A000960 A005427 A005428 A006165 A006257* A007495 A032434 A032435 A032436 A054995 A056526 A056530

Josephus problem: (2) A056531 A066997 A082125 A083286 A083287 A088442 A088443 A088452 A088333

Josephus's sieve: see sieve, Flavius Josephus

Joyce, James, "Ulysses": A054382

juggler sequence, sequences related to :

juggler sequence: A094683 A094685

juggler sequence: see also A007320 A007321 A094684 A094693 A094696 A094697 A094697 A094708 A094716 A094725 A094778

juggling, sequences related to :

juggling, other related sequences: A006694, A047996, A065167, A065171, A065174, A071160, A060495, A060498

juggling, site swaps, infinite sequences of, 3 balls: A084501*, A084511, A084521, A084452, A084458, A010701, A010694

juggling, site swaps, number of: A065177*, A084509, A084519, A084529

jumping champions, jumping problem, sequences related to :

jumping champions: A087102 A087103 A087104

jumping problem: A002466 A019592 A019593 A019595 A019596 A019993 A019994 A019995 A019996 A019997 A019998 A052709

junction numbers: A006064

Justified arrays:: A007073, A007074, A007072

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_K

k-arcs: A005524

K-free sequences:: A003002, A003003, A003004, A003005

K12 lattice , sequences related to :

K12 lattice, home page for

K12 lattice, theta series of: A004010*

Kagome' lattice: A001665, A005397

Kappa_{12} lattice: see K12 lattice

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order), sequences related to :

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): ( 1) A151949*, A099009*, A099010, A069746, A090429, A132155, A151946, A151947, A151950, A056965,

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): ( 2) A151951, A151955, A151956, A151957, A151958, A151959*, A151962, A151963, A151964, A151965, A151966

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): ( 3) A151967, A151968

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): ( 4) A164715, A164716, A164717, A164718, A164719, A164720, A164721, A164723, A164724, A164725, A164726, A164727

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): ( 5) A164728, A164729, A164730, A164731, A164732, A164733, A164734, A164735, A164736

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): ( 6) [base 2] A160761, A163205, A164884, A164885, A164886, A164887

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): ( 7) [base 3] A164993-A165011

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): ( 8) [base 4] A165012-A165031

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): ( 9) [base 5] A165032-A165050

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): (10) [base 6] A165051-A165070

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): (11) [base 7] A165071-A165089

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): (12) [base 8] A165090-A165109

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): (13) [base 9] A165110-A165129

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): (14) [Joseph Myers's program for sequences related to] See A151949

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): see also RADD sequences

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): see also RATS sequences

Kaprekar map n -> (n with digits in decreasing order) - (n with digits in ascending order): see also Reverse and Add! sequences

Kaprekar numbers: A006886*, A037042, A053394, A053395, A053396, A053397, A045913, A006887

Kayles: A002186*

Keith numbers , sequences related to :

Keith numbers: A007629*, A06576*

Kempner tableaux: A005437, A005438

Kempner-Smarandache numbers, sequences related to :

Kempner-Smarandache numbers: A002034*, A007672

Kempner-Smarandache numbers: see also A011772

Kendall-Mann numbers: A000140*

Kepler's tree of fractions: A020651/A086592, A093873/A093875

keys: A002714

keystrokes: A178715, A193286; see also A000792

Khintchine's constant: A002210* (decimal expansion), A002211* (continued fraction)

Kimberling puzzle: A006852, A035486

kings problem: A002464*, A002493

kissing numbers, sequences related to :

kissing numbers: A001116* (all lattices), A002336 (laminated lattices), A028923 (Kappa_n), A006088 (Barnes-Wall lattices), A034597 (extremal lattice in 24n dimensions), A034598 (second nonzero coefficient)

Klarner-Rado sequences, sequences related to :

Klarner-Rado sequences: see A005658 and references given there

knights , sequences related to :

knights tours: A001230

knights, covering board with: A006075, A006076, A098604

knights, non-attacking: A030978*

knights, see also (1): A003192 A005220 A005221 A005222 A005223 A018836 A018837 A018838 A018839 A018840 A018841

knights, see also (2): A018842 A025588 A025589 A025590 A025599 A025600 A025601 A025602 A030444 A030445 A030446 A030447

knights, see also (3): A030448 A035289 A037009 A047878 A047879 A047881 A047883 A049604

Knopfmacher expansions: A007567, A007568, A007759

knots, sequences related to :

knots : A002864*, A002863*, A018891*

knots, in a strip of paper: A049013*

knots: see also A007478, A007293

Knuth , sequences related to :

Knuth's Fibonacci or circle product: A101330, A135090

Knuth's sequence (or Knuth numbers): A007448*, A002977

Kobon triangles: A006066, A032765

Kolakoski sequence, sequences related to :

Kolakoski sequence: A000002*

Kolakoski sequence: see also (1) A001083 A006928 A013947 A013948 A022292 A022294 A022295 A022296 A022327 A025503 A025504 A042942

Kolakoski sequence: see also (2) A049705 A078880 A064353

Kolakowski sequence: see Kolakoski sequence

Kotzig factorizations:: A005702

Kronecker (-1,n): A034947

Kubelski sequence: A056064

Kummer's conjecture, sequences related to :

Kummer's conjecture: A000921, A000922, A000923

K_12 lattice: see K12 lattice

K_{12} lattice: see K12 lattice

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_La

L-series: A007653, A046113

L.C.M.: see entries under LCM

labeled partitions: see also under partitions

lacing a shoe , sequences related to :

lacing a shoe: A078601 A078629 A078674 A078602 A078675 A078676 A078698 A078700 A078702 A079410 A072503 A002866

lacing a shoe: see also A002816 A078603 A078628 A078673

Laguerre polynomials, sequences related to :

Laguerre polynomials, A021009*, A021010, A021012

Laguerre polynomials, columns: A001805-A001807, A001809-A001812

Laguerre polynomials, generalized, columns: A061206 A062141-A062144, A062148-A062152, A062193-A062195, A062199, A062260-A062263

Laguerre polynomials, generalized, row sums: A062146, A062147, A062191, A062192, A062197, A062198, A062265, A062266, A066668

Laguerre polynomials, generalized: A062137-A062140, A066667

Laguerre polynomials, row sums: A009940*

Laguerre polynomials: see also A025166

Lah numbers, sequences related to :

Lah numbers, triangle of: A008297*

Lah numbers: A001286, A001754, A001755, A001777, A001778

Lah numbers: see also (1) A000262 A035342 A035342 A035469 A035469 A046089 A048897 A049029 A049029 A049352 A049353 A049374

Lah numbers: see also (2) A049385 A049385 A049403 A049404 A049410 A049411 A049424

LambertW function, sequences related to :

LambertW function: A001662, A051711, A058955, A058956, A013703, A030178, A030179, A052807, A052880, A005172, A030797

laminated lattices, sequences related to :

laminated lattices, determinants of: A028921*

laminated lattices, kissing numbers of: A002336*, A028924*

laminated lattices, numbers of: A005135*

laminated lattices, theta series of (1): A000122 A004016 A004015 A004011 A005930 A004007 A004008 A004009 A005933 A006909 A006910 A006911 A006912 A006913

laminated lattices, theta series of (2): A006914 A006915 A006916 A006917 A023937 A023938 A023939 A023940 A023941 A023942 A023943 A023944 A023945 A024211

Landau approximation: A000690

Landau's function g(n): A000793*

Langford pairings: see Langford-Skolem problem of arranging 11223344...nn. Langford-Skolem problem of arranging 11223344...nn: A014552, A192289, A050998, A059106, A059107, A059108, A176127, A193564

language, words in a certain: A000802 A005819 A007055 A007056 A007057 A007058 A036995

largest factors , sequences related to :

largest factors of various numbers: (1) A002582 A002583 A002584 A002585 A002587 A002588 A002590 A002591 A002592 A003020 A003021 A005420

largest factors of various numbers: (2) A005422 A006486 A007571 [this list needs to be extended]

largest prime dividing n: A006530*, A070087, A070089

last digits: see final digits

last occurrence: A001463

Latin (the language): A132984

Latin (the language): see also A132204

Latin cubes, rectangles and squares, sequences related to :

Latin cubes: A098843 A098846 A098679 A099321

Latin rectangles: A000186 A000512 A000513 A000516 A000536 A000573 A000576 A001009 A001568 A001623 A001624 A001625 A001626 A001627 A003170

Latin squares, mutually orthogonal: A001438*

Latin squares, number of: A000315* (reduced), A002860*, A003090*, A040082*, A003191

Latin squares, see also A000519, A000611, A001070, A019570, A019585

Latin squares, see also Latin rectangles

Latin squares: see also Latin rectangles, quasigroups

Latin: see also Index entries for sequences related to number of letters in n

lattice , sequences related to :

lattice : in this index only, lattice (small l) refers to arrangements of points in space, Lattice (capital L) refers to partially ordered sets

lattice points in various regions:: A000036, A000092, A000099, A000223, A000323, A000328, A000413, A000605

lattice, extremal in dimension 72: A004675*

lattices : in this index only, lattice (small l) refers to arrangements of points in space, Lattice (capital L) refers to partially ordered sets

lattices, by determinant: A005134, A005138, A005139, A005140, A054907, A054908, A054909, A054911

Lattices, distributive:: A006982, A006356, A006357, A006358, A006359, A006360, A006361, A006363, A006362

lattices, eutactic: A037075, A065536

Lattices, examples of ("meet" and "join" paired): A004198-A003986, A003989-A003990, A082858-A082860

lattices, extreme: A033689*

lattices, Green's function for:: A003301, A003283, A003299, A003282, A003302, A003280, A003284, A003300, A003298, A003281

Lattices, labeled: A055512*, A058164, A058165, A058803-A058805

lattices, laminated: A005135*

lattices, laminated: see also under laminated lattices

lattices, minimal determinant of:: A005102, A005103, A005104

lattices, minimal norm of: see minimal norm

Lattices, modular: A006981*

lattices, orthogonal: A007669

lattices, paths on:: A006191, A006318, A006189, A006192, A006319, A006320, A006321

lattices, perfect: A004026*, A065535

lattices, polygons on:: A002931, A006781, A006782, A006772, A006783, A006773

lattices, polymers on:: A007290, A007291

lattices, see also under: sublattices

lattices, spin-wave coefficients: A003303

lattices, unimodular and even: A054909*

lattices, unimodular and odd: A054911*, A054908

lattices, unimodular, minimal norm of: A005136*

lattices, unimodular: A005134*, A054907

Lattices, vertically indecomposable: A058800*, A058801, A058802, A058803*, A058804, A058805

lattices, walks on:: see walks

Lattices: A006966* (unlabeled); A055512* (labeled)

lattices: see also hexagonal close-packing, etc.

lattices: see also A2 lattice

lattices: see also b.c.c. lattice

lattices: see also Barnes-Wall lattices

lattices: see also f.c.c. lattice

lattices: see also under L_infinity norms

Lattices: see also under posets

Lazy Caterer sequence: A000124*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Lc

LCM , sequences related to :

LCM of binomial coefficients: A002944

LCM(x,y): A003990*, A051173*, A000793*, A003418*, A048691*

LCM: see also A002944, A007463, A006580, A051426, A051193, A048619, A048671, A045948, A025557, A025556, A025527, A025558, A034890, A035105, A049073

LCM: the canonical spelling for "least common divisor" in the OEIS is LCM (not lcm) (except of course in Maple and PARI lines)

lcm: the canonical spelling for "least common divisor" in the OEIS is LCM (not lcm) (except of course in Maple and PARI lines)

LCM{1,2,...,n}: A003418*, A002944

LCM{1,3,5,...,2n+1}: A025547*

least common multiple: see entries under LCM

least k such that the remainder when X^k is divided by k is n where X = 2..32 , sequences related to :

least k such that the remainder when X^k is divided by k is n where X = 2..32 (01): A036236, A078457, A119678, A119679, A127816, A119715, A119714, A127817, A127818, A127819, A127820, A127821,

least k such that the remainder when X^k is divided by k is n where X = 2..32 (02): A128154, A128155, A128156, A128157, A128158, A128159, A128160, A128361, A128362, A128363, A128364, A128365,

least k such that the remainder when X^k is divided by k is n where X = 2..32 (03): A128366, A128367, A128368, A128369, A128370, A128371, A128372,

least k such that the remainder when X^k is divided by k is n where X = 2..32 (04): see also: A126762

Least number of powers to represent n:: A002828, A002377, A151925

least significant bit (lsb): A000035

Leech , sequences related to :

Leech lattice, odd: A027859*

Leech lattice, shorter: A004537*, A029754*

Leech lattice, theta series of: A008408*

Leech lattice: see also A001942, A004034, A029754

Leech triangle: A001293*

Leech's path-labeling problem: A034470*

Leech's path-labeling problem: see also Golomb rulers

Leech's tree-labeling problem: A007187*

left factorials: A003422*

left factorials: see also factorial numbers

Legendre , sequences related to :

Legendre polynomials:: A008316*, A001797, A001798, A001801, A002461, A001796, A001800, A002463, A001802, A001795, A001799, A006750, A002462

Legendre's conjecture: A007491, A014085, A053000, A053001

LEGO blocks, sequences related to :

LEGO blocks: A007575, A007576

Lehmer's constant: A002665*, A030125*, A002794*/A002795*, A002065

Lehmer's polynomial: A070178

Leibniz's triangle: see harmonic triangle of Leibniz

lemniscate function, or Weierstrass P-function: A002306*/A047817*, A002770

Lemoine's conjecture: A046927

length of n in binary: A070939

Length of runs:: A000002, A001250, A001251, A001252, A001253, A000303, A000402, A000434, A000456, A000467, A000517

Leonardo logarithms: A001179

Les Marvin sequence: A007502

letters in n , sequences related to :

letters in n (in English): A005589*, A006944

letters in n (in other languages) (1): A001050 (Finnish), A001368 (Irish Gaelic), A003078 (Danish), A006968 or A092196 (Roman numerals), A007005 or A006969 (French), A006994 (Russian), A007208 (German), A007292 (Hungarian), A007485 or A090589 (Dutch),

letters in n (in other languages) (2): A008962 (Polish), A010038 (Czech), A011762 (Spanish), A027684 (Hebrew, dotted), A051785 (Catalan), A026858 (Italian), A056597 (Serbian or Croatian), A057435 (Turkish), A132984 (Latin), A140395 (Hindi),

letters in n (in other languages) (3): A053306 (Galego), A057696 (Brazilian Portuguese), A057853 (Esperanto), A059124 (Swedish), A030166, A112348, A112349 and A112350 (Chinese), A030166 (Japanese Kanji), A140396 (Welsh), A140438 (Tamil)

letters in n (in other languages) (4): A014656 (Bokmal), A028292 (Nynorsk)

Levenshtein distance (1); A010097, A080910, A080950, A081230, A081355, A081356, A081732, A083311, A083381, A091090,

Levenshtein distance (2); A091091, A091092, A091093, A091110, A091111, A097720, A097721, A097722, A106028, A106432,

Levenshtein distance (3); A109378, A109380, A109382, A109809, A109811, A115777, A115778, A115779, A115780, A118757, A118763

Levine's sequence: A011784*

Levy's conjecture: A046927

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Li

Li(n): A047783, A047784, A047785

Lie algebras , sequences related to :

Lie algebras, dimensions of: A001066*, A003038*, A038539*

Lie algebras, filiform: A055614

Lie algebras, see also (1): A005018 A005233 A005423 A005433 A005453 A005454 A005455 A005456 A005457 A005458 A005459

Lie algebras, see also (2): A005496 A005555 A007851 A007988 A007990 A007991 A007993 A007994 A007995 A028351 A030647

Lie algebras, see also (3): A030648 A030649 A030650

light, speed of: A003678*

light-bulb game of Berlekamp: A005311

light-bulbs: see also A046932, A055061

linear codes: see also codes, binary

linear extensions, sequences related to :

linear extensions: A114717, A114714, A114715, A114716, A000111, A046873, A060854, A039622

linear forms: A004059, A057561

linear inequalities: A002797

linear orders: A006455*

linear recurrences with constant coefficients: see recurrence, linear, constant coefficients

linear spaces, sequences related to :

linear spaces: A056642, A001199, A002877, A002876, A001548

lines, number of ways of arranging: A048872*, A048873*, A003036*

lines, ordinary: A003034

Linus sequence: A006345

Liouville , sequences related to :

Liouville's constant: A012245

Liouville's function L(n): A002819*, A002053

Liouville's function lambda(n): A008836*, A056912, A056913, A026424, A028260

Liouville's function: see also A007421

Liouville's number: A012245

list manipulation functions of Lisp and similar programming languages, sequences induced by , :

list manipulation functions of Lisp and similar programming languages, sequences induced by, (These act on symbolless S-expressions encoded by A014486/A063171, usually giving as their result an index therein.)

list manipulation functions of Lisp, append, A085201

list manipulation functions of Lisp, car, A072771

list manipulation functions of Lisp, cdr, A072772

list manipulation functions of Lisp, cons, A072764

list manipulation functions of Lisp, length, A057515

list manipulation functions of Lisp, list, 1-ary, A057548

list manipulation functions of Lisp, list, 2-ary, A085205

list manipulation functions of Lisp, reverse, A057508, A033538

list manipulation functions of Lisp: see also signature-permutations induced by Catalan automorphisms

list manipulation functions of Lisp: see also rooted trees, plane, encodings of

list merging, sorting by: A003071

lists of sets: A002869

lists: see also under partitions

literal reading of prime factorization: A037276, A067599, A080670

ln: see log

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Lo

locks: A002050*

Loeschian numbers: A003136*

log , sequences related to logarithms :

log 10, decimal expansion of: A002392*

log 2, decimal expansion of: A002162*

log 3, decimal expansion of: A002391*

log 5, decimal expansion of: A016628*

log 7, decimal expansion of: A016630*

log(3/2): A016529, A016578

log(cos(x)): A046990/A046991

log(n)*2^n/n: A065613, A065614, A065616, A065617, A065618

log(n): A000195*, A000193*, A004233*

log(sin(x)/x): A046988/A046989

logarithmic integral: see Li(n)

logarithmic numbers, sequences related to :

logarithmic numbers: (1) A000522 A002104 A002206 A002207 A002741 A002742 A002743 A002744 A002745 A002746 A002747 A002748

logarithmic numbers: (2) A002749 A002750 A002751 A007553

log_10 e, decimal expansion of: A002285*

log_2 3: continued fraction for, A028507, A005663, A005664; decimal expansion, A020857

log_2(n): A000523, A004257, A029837, A020857-A020864, A152590

log_3(n): A102524, A100831, A113209, A102525, A152565, A113210, A152566, A152549, A152564

long but finite sequences: see finite sequences with a large number of terms

longest common subsequence: A094837, A094838, A094858, A094859, A094863, A094860, A094861, A094862, A094863, A094291

longest common subsequence: see also A094291, A007581, A027433, A047874, A124092

longest common subsequence: see also longest common substring

longest common substring: A094824

longest common substring: see also A177062

longest common substring: see also longest common subsequence

look and say sequences: A005150, A045918; but see entries under "say what you see"

loops, sequences related to :

loops, in digits: A001729, A001742, A034905

loops, in hypercubes: A043546

loops, Moufang: A000373

loops: A000644, A007746

Lorentzian modular group: A005793, A005794

Losanitsch's triangle: A034851*, A034852, A034877, A034872, A032123

low discrepancy sequences: A005356, A005357, A005358, A005377

low temperature series , sequences related to :

low temperature series (1): A002890 A002891 A002909 A002915 A002926 A002927 A007214 A007215 A007216 A007217 A007218 A007270

low temperature series (2): A007271 A029872 A029873 A029874 A030045 A030046 A030047 A047710

loxodromic sequence of spheres: A027674*

Loxton-van der Poorten sequence: A006288*

Loyd's 15-Puzzle: see Fifteen Puzzle

LS ("Look and Say"): A045918; see also "say what you see"

lsb = least significant bit: A000035

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Lu

Lucas , sequences related to :

Lucas numbers, generalized: A006490, A006491, A006492, A006493

Lucas numbers, generalized: see Fibonacci numbers, generalized

Lucas numbers, prime: see primes, Lucas numbers

Lucas numbers: A000032*, A000204*

Lucas numbers: see also A003263, A001606, A006490, A005479, A005372, A006491, A005371, A002878, A006492, A004146, A006493, A005970, A005971, A005972, A006972, A005845

Lucas polynomials: A034807*, A061896

Lucas pseudoprimes: see pseudoprimes

Lucas, Theorie des Nombres, on the web: see A008288

Lucas-Carmichael numbers: A006972*

Lucasian primes: see primes, Lucasian

lucky numbers, sequences related to :

lucky numbers: A000959*

lucky numbers: even: A045954*

lucky numbers: see also A002850

Lukasiewicz words , Lukasiewicz words, sequences related to

Lukasiewicz words: A071152, A071153, A071160

Lyndon words , sequences related to :

Lyndon words , A001037*, A001840, A006206, A006918, A011795-A011797, A011845, A031164, A032168, A032169, A032321*, A051170, A051172

Lyndon words, 10-colored, A032165*

Lyndon words, 11-colored, A032166*

Lyndon words, 12-colored, A032167*

Lyndon words, 3-colored, A027376*, A032322*, A046209, A046211

Lyndon words, 4-colored, A027377*, A032323*

Lyndon words, 5-colored, A001692*, A032324*

Lyndon words, 6-colored, A032164*

Lyndon words, 7-colored, A001693*

Lyndon words, balanced (1): A000048, A000150, A000740, A022553*, A029808, A029809, A045632, A050180-A050185

Lyndon words, balanced (2): A074651-A075657

Lyndon words, complements are equivalent, A000048, A000740, A045632

Lyndon words, triangle: A051168*, A052314, A074650

Lyndon words: see also (1): A002730, A032134-A032142, A032144-A032150, A032153-A032159, A032170, A032325-A032332, A045680

Lyndon words: see also (2): A045683-A045687, A051841, A056493, A075147

Lyndon words: see also bracelets

Lyndon words: see also necklaces

lyrics, see: songs, popular

L_infinity norms , sequences related to :

L_infinity norms in lattices: A010014, A022144, A110907, A117216

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_M

m-sequences , sequences related to :

m-sequences, binary, examples of: A011655 A011656 A011657 A011659 A011660 A011661 A011662 A011663 A011664 A011665

m-sequences, binary, more examples: A011666 A011667 A011668 A011669 A011670 A011671 A011673 A011674 A011675 A011676

m-sequences, binary, more examples: A011677 A011678 A011679 A011680 A011681 A011682 A011683 A011684 A011685 A011686

m-sequences, binary, more examples: A011687 A011688 A011689 A011690 A011691 A011692 A011693 A011694 A011695 A011696

m-sequences, binary, more examples: A011697 A011698 A011699 A011700 A011701 A011702 A011703 A011704 A011705 A011706

m-sequences, binary, more examples: A011707 A011708 A011709 A011710 A011711 A011712 A011713 A011714 A011715 A011716

m-sequences, binary, more examples: A011717 A011718 A011719 A011720 A011721 A011722 A011723 A011724 A011725 A011726

m-sequences, binary, more examples: A011727 A011728 A011729 A011730 A011731 A011732 A011733 A011734 A011735 A011736

m-sequences, binary, more examples: A011737 A011738 A011739 A011740 A011741 A011742 A011743 A011744 A011745

m-sequences, enumeration of: A000110 A000125 A003659 A007065 A007625 A007723 A011802 A011803 A011804 A011805

m-sequences, enumeration of; cont.: A011806 A011807 A011808 A011809 A011810 A011811 A011812 A011813 A011814 A011815

m-sequences, enumeration of; cont.: A011816 A011817 A011819 A011819 A011820 A011820 A011821 A011822 A011823 A011824 A011825

M-sequences: see m-sequences

M-trees: A006959*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Mag

magic numbers, sequences related to :

magic numbers: A004210*, A005902*, A018226, A018227, A033547, A046939, A046940

magic series: A052456, A052457, A052458

magic squares : sequences related to :

magic squares, 3 X 3: A033812, A024351, A073473, A073519, A073350

magic squares, 4 X 4: A073521, A032530

magic squares, 5 X 5: A073522

magic squares, 6 X 6: A073523

magic squares, antimagic: A050257

magic squares, from primes: A073473, A024351, A073519, A073521, A073522, A073523, A073350, A073502, A073520

magic squares, number of: A006052*

magic squares, panmagic: A027567, A051235

magic squares, row sums: A006003

magic squares, see also: A014582, A033816

magic squares, smallest magic constant: A073502, A073520

magic squares, stochastic matrices: A000681, A005650, A001500

magnetization coefficients, sequences related to :

magnetization coefficients: (1) A002928 A002929 A002930 A003193 A003196 A007206 A007207 A010102 A010103 A010104 A010105 A010106

magnetization coefficients: (2) A030120 A030121 A057374 A057378 A057382 A057386 A057390 A057394 A057398 A057402

Mahler's number: see Champernowne constant

Mahonian numbers: A008302*

making change for n cents , sequences related to :

making change for n cents (1): A000008 A001299 A001300 A001301 A001302 A001306 A001310 A001312 A001313 A001314 A001319 A001343

making change for n cents (2): A001362 A001364 A002426 A011542 A053344

malicious apprentice problem: A057716, A074894*

Mancala , sequences related to :

Mancala solitaire (generalized): {k=0..12} A002491, A000960 (Flavius Josephus's sieve), A112557, A112558, A113742, A113743, A113744, A113745, A113746, A113747, A113748; det. A113749

Mancala: see also Tchoukaillon (the main entry is A028932)

Mandelbrot set:: A006874, A006875, A006876

Mangoldt function: A029832, A029833, A029834, A053821

Manhattan lattice: A006744, A006745, A006781

Manhattan subways: A001049, A011554

manifolds: A005026*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Map

map, 3x+1: see 3x+1 problem

Maple code for computing positions of 0's in decimal expansion of Pi (say): A014976

mappings , sequences related to :

mappings, fixed points of, see: fixed points of mappings

mappings, labeled: A000312

mappings: see also maps

maps , sequences related to :

maps on n points: A001372*

Maps, 2-connected, A006445, A005645, A006444, A006403, A006407, A006406, A006405, A006404

Maps, A006399, A006398, A006397, A006396, A006384, A005027, A006391, A006390, A006389, A006388, A006961, A001372*, A003620, A006393, A006392, A006343, A003621, A005945, A005946

Maps, almost trivalent, A002006, A002012, A002005, A002008, A002010, A002007, A002009

maps, coloring: A000934*, A000703

maps, coloring: see also coloring a map

Maps, connected, A006443, A006385

maps, folding: A001417*

Maps, genus 1, A006387, A006386

Maps, Hamiltonian, A000264, A000356

Maps, nonseparable, A006402

maps, planar: A000184, A000365, A000473, A000502, A006294, A006295, A006384, A006385

maps, planar: see also planar vs plane

maps, plane: see also planar vs plane

Maps, regions in, A006683

maps, rooted (1):: A000087, A006470, A000184, A000257, A000259, A000305, A000309, A006302, A006294, A006468, A006471, A000365, A006419, A006416

maps, rooted (2):: A006469, A006295, A006297, A000473, A006420, A006417, A006298, A006299, A006301, A006421, A006303, A006418, A000502, A006296

Maps, self-dual, A006849

Maps, symmetric, A005028

Maps, toroidal, A006408, A006422, A006425, A006415, A006434, A006439, A006414, A006409, A006436, A006423, A006426, A006441, A006435, A006440, A006300, A006410, A006424, A006427, A006437

Maps, tree-rooted, A004304, A002740, A006411, A006428, A006432, A006412, A006429, A006433, A006413, A006430

Maps, tumbling distance for, A005947, A005948, A005949

maps: see also mappings

maps: see also under graphs

Maris-McGwire numbers: A045759

Markoff numbers: A002559*

Markov numbers: see Markoff numbers

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Mat

matchings, sequences related to :

matchings, see also 1-factorizations

matchings: see also tournaments

matchings:: A005154

mathematical symbols in OEIS: see spelling and notation

matrices, sequences related to :

matrices, (+1,-1): see matrices, binary

matrices, (0,1): see matrices, binary

matrices, alternating sign , sequences related to :

matrices, alternating sign: (1) A005130*, A006366*, A003827, A005156, A005158, A005160-A005164, A048601, A050204, A051055, A057629, A059475, A059476, A059486

matrices, alternating sign: (2) A128445, A109074/A134357

matrices, alternating sign: see also Robbins numbers

matrices, anti-Hadamard: A005312, A005313

matrices, binary , sequences related to :

matrices, binary - refers to matrices with entries of both types, real (or complex) or over a finite field

matrices, binary, 3 X n: A006381, A002727

matrices, binary, 4 X n: A006380, A006382, A006148

matrices, binary, n X n: complex eigenvalues: A098148

matrices, binary, n X n: A000595* (equivalence classes under S_n), A006383 (equivalence classes under S_n X S_n)

matrices, binary, n X n: det = 1: A086264

matrices, binary, n X n: diagonalizable: A091470, A091471, A091472

matrices, binary, n X n: eigenvalues all = 1 but not positive definite: see A085657

matrices, binary, n X n: invertible: A002884* (over GF(2)), A055165 ({0,1}, rational)

matrices, binary, n X n: maximal determinant: A003432*, A003433*, A013588

matrices, binary, n X n: normal: A055547 A055548 A055549

matrices, binary, n X n: positive definite: A085656 (entries 0,1, rational), A085657 (entries 2,1,0, symmetric), A084552 (entries 2,-1,0, symmetric), A080858

matrices, binary, n X n: positive eigenvalues: A003024 (entries 0,1), A085506 (entries 0, +-1)

matrices, binary, n X n: positive semi-definite: A038379 (entries 0,1, rational), A085658 (entries 2,1,0, symmetric), A084553 (entries 2,-1,0, symmetric), A083029

matrices, binary, n X n: primitive: A070322

matrices, binary, n X n: singular: A000409*, A000410*, A046747* (rational)

matrices, binary, n X n: with k 1's in each row and column: A000142, A001499, A001501, A058528, A075754

matrices, binary, n X n: zero permanent: A088672

matrices, binary, permanents of: A000255 A052655 A087981 A087982 A087983 A088672

matrices, binary, upper triangular: A005321*

matrices, binary, with n 1's: A049311*

matrices, binary, with no 2 adjacent 1's: A006506*

matrices, binary, with no zero rows or columns: A048291, A054976

matrices, binary: see also Hadamard matrices

matrices, binary: see also A002820, A000804, A000805, A003509, A005991, A002724, A005019, A005020

matrices, binary: see also matrices, ternary

matrices, conference: A000952*

matrices, cyclic: A000804, A000805

matrices, Hadamard: see Hadamard matrices

Matrices, Hilbert, A005249

Matrices, incidence, A002725, A002728

Matrices, modular, A005045, A006045, A005353

matrices, normal: A055547 A055548 A055549

Matrices, norms of, A004141

Matrices, Pascal, A006135, A006136

Matrices, random, A001171

Matrices, Schur, A003112

Matrices, stochastic, A006847, A006848, A000987, A000985, A001495, A000681, A000986, A001500, A001499, A001496, A001501, A005466, A003438, A005467, A003439

matrices, ternary - refers to matrices with entries of both types, real (or complex) or over a finite field

matrices, ternary, n X n: A053290, A056989

matrices, ternary, see also matrices, binary

Matrices:: A002136, A005020, A005045, A007411, A006045, A005353, A005019

matrix, coprime?: A005326*

matroids , sequences related to :

matroids, triangle of number of: A034327, A034328, A058669, A053534, A058710, A058711, A058716, A058717, A058720, A058730

matroids: A002773*, A055545*, A005387*, A056642*, A058673*, A058712*, A058718*, A058721*

matroids: see also A034329 A034330 A034331 A034332 A034333 A034334 A034335 A034336

Maundy cake: A006022

Max Alekseyev's problem: see doubling substrings

max(x,y): A003984*, A051125*

maximal digit in n in bases 3 through 12: A190592, A190593, A190594, A190595, A190596, A190597, A190598, A054055, A190599, A190600.

maximal intersecting families of sets: A007006, A007007, A007008

McKay-Thompson sequences or series, sequences related to :

McKay-Thompson sequences for Monster simple group: see McKay-Thompson series

McKay-Thompson series of class 001A: A000521 A007240 A014708

McKay-Thompson series of class 001a: A154272

McKay-Thompson series of class 002A: A007241 A007267 A045478 A101558

McKay-Thompson series of class 002a: A007242

McKay-Thompson series of class 002B: A007191 A007246 A045479

McKay-Thompson series of class 002b: A154272

McKay-Thompson series of class 003A: A007243 A030197 A045480

McKay-Thompson series of class 003B: A007244 A030182 A045481

McKay-Thompson series of class 003C: A007245

McKay-Thompson series of class 004A: A007246 A045479 A107080 A134786

McKay-Thompson series of class 004a: A007250

McKay-Thompson series of class 004B: A007247

McKay-Thompson series of class 004C: A007248

McKay-Thompson series of class 004D: A007249

McKay-Thompson series of class 005A: A007251 A045482

McKay-Thompson series of class 005a: A007253

McKay-Thompson series of class 005B: A007252 A045483

McKay-Thompson series of class 006A: A007254 A045484

McKay-Thompson series of class 006a: A007260

McKay-Thompson series of class 006B: A007255 A045485

McKay-Thompson series of class 006b: A007261

McKay-Thompson series of class 006C: A007256 A045486

McKay-Thompson series of class 006c: A007262

McKay-Thompson series of class 006D: A007257 A045487

McKay-Thompson series of class 006d: A007263

McKay-Thompson series of class 006E: A007258 A045488 A105559 A128632 A128633

McKay-Thompson series of class 006F: A007259

McKay-Thompson series of class 007A: A007264 A030183 A045489

McKay-Thompson series of class 007B: A030181 A052240

McKay-Thompson series of class 008A: A007265 A045490 A134785

McKay-Thompson series of class 008a: A112144

McKay-Thompson series of class 008b: A058088

McKay-Thompson series of class 008B: A112142

McKay-Thompson series of class 008C: A052241

McKay-Thompson series of class 008c: A112145

McKay-Thompson series of class 008D: A112143

McKay-Thompson series of class 008E: A029841

McKay-Thompson series of class 008F: A022601

McKay-Thompson series of class 009A: A007266 A045491

McKay-Thompson series of class 009a: A058092

McKay-Thompson series of class 009B: A058091

McKay-Thompson series of class 009b: A112146

McKay-Thompson series of class 009c: A058095

McKay-Thompson series of class 009d: A058096

McKay-Thompson series of class 010A: A058097

McKay-Thompson series of class 010a: A058102

McKay-Thompson series of class 010B: A058098

McKay-Thompson series of class 010b: A058103

McKay-Thompson series of class 010C: A058099

McKay-Thompson series of class 010c: A058204

McKay-Thompson series of class 010D: A058100 A132130

McKay-Thompson series of class 010E: A058101 A138516 A139381

McKay-Thompson series of class 011A: A003295 A058205 A134784 A128525

McKay-Thompson series of class 012a: A058489

McKay-Thompson series of class 012A: A112147

McKay-Thompson series of class 012B.: A045488 A007258 A112148

McKay-Thompson series of class 012b: A058490

McKay-Thompson series of class 012C: A058206

McKay-Thompson series of class 012c: A058491

McKay-Thompson series of class 012d: A058492

McKay-Thompson series of class 012D: A101127

McKay-Thompson series of class 012E: A058483

McKay-Thompson series of class 012e: A058493

McKay-Thompson series of class 012F: A058484

McKay-Thompson series of class 012f: A112149

McKay-Thompson series of class 012G: A058485

McKay-Thompson series of class 012H: A058486

McKay-Thompson series of class 012I: A058487

McKay-Thompson series of class 012J: A022599

McKay-Thompson series of class 013A: A034318 A034319

McKay-Thompson series of class 013B: A058496

McKay-Thompson series of class 014A: A058497 A134782

McKay-Thompson series of class 014a: A058505

McKay-Thompson series of class 014B: A058503

McKay-Thompson series of class 014b: A058506

McKay-Thompson series of class 014C: A058504

McKay-Thompson series of class 014c: A058507

McKay-Thompson series of class 015A: A058508 A134783

McKay-Thompson series of class 015a: A058512

McKay-Thompson series of class 015B: A058509

McKay-Thompson series of class 015b: A058513

McKay-Thompson series of class 015C: A058510

McKay-Thompson series of class 015D: A058511

McKay-Thompson series of class 016A: A058514

McKay-Thompson series of class 016a: A112150

McKay-Thompson series of class 016B: A029839

McKay-Thompson series of class 016b: A112151

McKay-Thompson series of class 016C: A058516

McKay-Thompson series of class 016c: A112152

McKay-Thompson series of class 016d: A082304

McKay-Thompson series of class 016e: A058526

McKay-Thompson series of class 016f: A112153

McKay-Thompson series of class 016g: A112154

McKay-Thompson series of class 016h: A112155

McKay-Thompson series of class 017A: A058530

McKay-Thompson series of class 018A: A058531

McKay-Thompson series of class 018a: A058536

McKay-Thompson series of class 018B: A058532

McKay-Thompson series of class 018b: A058537

McKay-Thompson series of class 018C: A058533

McKay-Thompson series of class 018c: A058538

McKay-Thompson series of class 018d: A058539

McKay-Thompson series of class 018D: A062242

McKay-Thompson series of class 018E: A058535

McKay-Thompson series of class 018e: A058543

McKay-Thompson series of class 018f: A058544

McKay-Thompson series of class 018g: A112156

McKay-Thompson series of class 018h: A058546

McKay-Thompson series of class 018i: A112157

McKay-Thompson series of class 018j: A058548

McKay-Thompson series of class 019A: A058549 A136569

McKay-Thompson series of class 020a: A058556

McKay-Thompson series of class 020A: A112158

McKay-Thompson series of class 020B: A058551

McKay-Thompson series of class 020b: A058557

McKay-Thompson series of class 020c: A058558

McKay-Thompson series of class 020C: A112159

McKay-Thompson series of class 020D: A058553

McKay-Thompson series of class 020d: A058559

McKay-Thompson series of class 020E: A058554

McKay-Thompson series of class 020e: A058560

McKay-Thompson series of class 020F: A058555

McKay-Thompson series of class 021A: A058563

McKay-Thompson series of class 021B: A058564

McKay-Thompson series of class 021C: A058565

McKay-Thompson series of class 021D: A058566

McKay-Thompson series of class 022A: A058567

McKay-Thompson series of class 022a: A058569

McKay-Thompson series of class 022B: A058568

McKay-Thompson series of class 023A: A058570 A134781

McKay-Thompson series of class 024A: A058571 A058572

McKay-Thompson series of class 024a: A058584

McKay-Thompson series of class 024B: A058572

McKay-Thompson series of class 024b: A112162

McKay-Thompson series of class 024C: A058573

McKay-Thompson series of class 024c: A062243

McKay-Thompson series of class 024D: A058574

McKay-Thompson series of class 024d: A058587

McKay-Thompson series of class 024E: A112160

McKay-Thompson series of class 024e: A112163

McKay-Thompson series of class 024F: A058576

McKay-Thompson series of class 024f: A058589

McKay-Thompson series of class 024G: A112161

McKay-Thompson series of class 024g: A112164

McKay-Thompson series of class 024H: A058578

McKay-Thompson series of class 024h: A112165

McKay-Thompson series of class 024I: A058579 A138688

McKay-Thompson series of class 024i: A112166

McKay-Thompson series of class 024J: A022597

McKay-Thompson series of class 024j: A112167

McKay-Thompson series of class 025A: A058594

McKay-Thompson series of class 025a: A096563

McKay-Thompson series of class 026A: A058596

McKay-Thompson series of class 026a: A058598

McKay-Thompson series of class 026B: A058597

McKay-Thompson series of class 027A: A058599

McKay-Thompson series of class 027a: A058600

McKay-Thompson series of class 027B: A058599

McKay-Thompson series of class 027b: A058601

McKay-Thompson series of class 027c: A062246

McKay-Thompson series of class 027d: A058604

McKay-Thompson series of class 027e: A112168

McKay-Thompson series of class 028A: A058606

McKay-Thompson series of class 028a: A058610

McKay-Thompson series of class 028B: A112169

McKay-Thompson series of class 028C: A058608

McKay-Thompson series of class 028D: A058609

McKay-Thompson series of class 029A: A058611 A136570

McKay-Thompson series of class 030A: A058612

McKay-Thompson series of class 030a: A058619

McKay-Thompson series of class 030B: A058613

McKay-Thompson series of class 030b: A058623

McKay-Thompson series of class 030C: A058614

McKay-Thompson series of class 030c: A058624

McKay-Thompson series of class 030D: A058615

McKay-Thompson series of class 030d: A058625

McKay-Thompson series of class 030E: A058616

McKay-Thompson series of class 030e: A058626

McKay-Thompson series of class 030F: A058617

McKay-Thompson series of class 030f: A112170

McKay-Thompson series of class 030G: A058618 A135213

McKay-Thompson series of class 031A: A058628

McKay-Thompson series of class 032A: A058629

McKay-Thompson series of class 032a: A107635

McKay-Thompson series of class 032B: A058630

McKay-Thompson series of class 032b: A058632

McKay-Thompson series of class 032c: A112171

McKay-Thompson series of class 032d: A112172

McKay-Thompson series of class 032e: A082303

McKay-Thompson series of class 033A: A058636

McKay-Thompson series of class 033B: A058637

McKay-Thompson series of class 034A: A058638

McKay-Thompson series of class 034a: A058639

McKay-Thompson series of class 035A: A058640

McKay-Thompson series of class 035a: A058643

McKay-Thompson series of class 035B: A058641

McKay-Thompson series of class 036A: A058644

McKay-Thompson series of class 036a: A058648

McKay-Thompson series of class 036B: A062244

McKay-Thompson series of class 036b: A112173

McKay-Thompson series of class 036C: A058646

McKay-Thompson series of class 036c: A058650

McKay-Thompson series of class 036D: A058647

McKay-Thompson series of class 036d: A112174

McKay-Thompson series of class 036e: A112175

McKay-Thompson series of class 036f: A112176

McKay-Thompson series of class 036g: A103262

McKay-Thompson series of class 036h: A112177

McKay-Thompson series of class 036i: A112178

McKay-Thompson series of class 038A: A058657

McKay-Thompson series of class 038a: A058658

McKay-Thompson series of class 039A: A058659

McKay-Thompson series of class 039B: A058660

McKay-Thompson series of class 039C: A058661

McKay-Thompson series of class 040A: A058662

McKay-Thompson series of class 040a: A112180

McKay-Thompson series of class 040b: A058666

McKay-Thompson series of class 040B: A112179

McKay-Thompson series of class 040C: A058664

McKay-Thompson series of class 040c: A112181

McKay-Thompson series of class 040d: A112182

McKay-Thompson series of class 040e: A112183

McKay-Thompson series of class 041A: A058670

McKay-Thompson series of class 042A: A058671

McKay-Thompson series of class 042a: A058675

McKay-Thompson series of class 042B: A058672

McKay-Thompson series of class 042b: A058676

McKay-Thompson series of class 042c: A058677

McKay-Thompson series of class 042C: A102314

McKay-Thompson series of class 042D: A058674

McKay-Thompson series of class 042d: A058678

McKay-Thompson series of class 044A: A058679

McKay-Thompson series of class 044a: A058680

McKay-Thompson series of class 044b: A112184

McKay-Thompson series of class 044c: A058683

McKay-Thompson series of class 045A: A058684

McKay-Thompson series of class 045a: A058685

McKay-Thompson series of class 045b: A058686

McKay-Thompson series of class 045c: A112185

McKay-Thompson series of class 046A: A058688

McKay-Thompson series of class 046B: A058688

McKay-Thompson series of class 046C: A058689

McKay-Thompson series of class 046D: A058689

McKay-Thompson series of class 047A: A058690

McKay-Thompson series of class 048A: A058691

McKay-Thompson series of class 048a: A112186

McKay-Thompson series of class 048b: A112187

McKay-Thompson series of class 048c: A112188

McKay-Thompson series of class 048d: A112189

McKay-Thompson series of class 048e: A112190

McKay-Thompson series of class 048f: A112191

McKay-Thompson series of class 048g: A073252

McKay-Thompson series of class 048h: A112192

McKay-Thompson series of class 049a: A058700

McKay-Thompson series of class 049a: A136560

McKay-Thompson series of class 050a: A034320

McKay-Thompson series of class 050A: A058701

McKay-Thompson series of class 050a: A058703

McKay-Thompson series of class 051A: A058704

McKay-Thompson series of class 052A: A058705

McKay-Thompson series of class 052a: A058707

McKay-Thompson series of class 052B: A058706

McKay-Thompson series of class 054A: A058708

McKay-Thompson series of class 054a: A058709

McKay-Thompson series of class 054b: A112193

McKay-Thompson series of class 054c: A112194

McKay-Thompson series of class 054d: A112195

McKay-Thompson series of class 055A: A058713

McKay-Thompson series of class 056A: A058714

McKay-Thompson series of class 056a: A112196

McKay-Thompson series of class 056B: A097793

McKay-Thompson series of class 056b: A112197

McKay-Thompson series of class 056c: A112198

McKay-Thompson series of class 057A: A112199

McKay-Thompson series of class 058a: A058723

McKay-Thompson series of class 059A: A058724

McKay-Thompson series of class 060A: A058725

McKay-Thompson series of class 060a: A112200

McKay-Thompson series of class 060B: A058726

McKay-Thompson series of class 060b: A058732

McKay-Thompson series of class 060C: A058727

McKay-Thompson series of class 060c: A112201

McKay-Thompson series of class 060D: A058728 A143751

McKay-Thompson series of class 060d: A112202

McKay-Thompson series of class 060E: A058729

McKay-Thompson series of class 060e: A112203

McKay-Thompson series of class 060F: A096938

McKay-Thompson series of class 062A: A058736

McKay-Thompson series of class 063a: A112204

McKay-Thompson series of class 064a: A070048

McKay-Thompson series of class 066A: A058739

McKay-Thompson series of class 066a: A058741

McKay-Thompson series of class 066B: A058740

McKay-Thompson series of class 068A: A058742

McKay-Thompson series of class 069A: A058743

McKay-Thompson series of class 070A: A058744

McKay-Thompson series of class 070a: A058746

McKay-Thompson series of class 070B: A058745

McKay-Thompson series of class 071A: A034322

McKay-Thompson series of class 072a: A112205

McKay-Thompson series of class 072b: A112206

McKay-Thompson series of class 072c: A112207

McKay-Thompson series of class 072d: A112208

McKay-Thompson series of class 072e: A003105

McKay-Thompson series of class 076a: A058753

McKay-Thompson series of class 078A: A058754

McKay-Thompson series of class 078B: A058755

McKay-Thompson series of class 080a: A112209

McKay-Thompson series of class 082a: A112210

McKay-Thompson series of class 084A: A058758

McKay-Thompson series of class 084a: A058761

McKay-Thompson series of class 084B: A112211

McKay-Thompson series of class 084C: A112212

McKay-Thompson series of class 087A: A058762

McKay-Thompson series of class 088A: A112213

McKay-Thompson series of class 090a: A112214

McKay-Thompson series of class 090b: A112215

McKay-Thompson series of class 092A: A112216

McKay-Thompson series of class 093A: A112217

McKay-Thompson series of class 094A: A058768

McKay-Thompson series of class 095A: A058769

McKay-Thompson series of class 096a: A000700

McKay-Thompson series of class 102a: A112218

McKay-Thompson series of class 104A: A112219

McKay-Thompson series of class 105A: A058773

McKay-Thompson series of class 110A: A058774

McKay-Thompson series of class 117a: A112220

McKay-Thompson series of class 119A: A058776

McKay-Thompson series of class 120a: A112221

McKay-Thompson series of class 126a: A112222

McKay-Thompson series of class 132a: A112223

McKay-Thompson series of class 140a: A112224

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Me

meanders , sequences related to :

meanders: A005315*, A005316*

meanders: see also (1): A000257 A000560 A000682 A006657 A006658 A006659 A006660 A006661 A006662 A006663 A006664 A007746 A008828 A046690

meanders: see also (2): A046691 A046721 A046722 A046723 A046724 A046725 A046726

meanders: see also (3): A060066 A060089 A060111 A060148 A060149 A060174 A060198 A060206 A076875* A076876* A076906* A076907*

meanders: see also folding a strip of stamps

Meeussen sequences: A008934*

menage numbers, sequences related to :

menage numbers: A000179*, A000904*

menage numbers: see also A001569, A000222, A000271, A000386, A000426, A000450

mens-room permutations: see pay-phones

merge sort: A001768

merge sort: see also sorting

Mersenne , sequences related to :

Mersenne numbers 2^p-1: A001348*, A000668*, A000043*, A000225

Mersenne numbers: see also A001351, A003260, A006515

Mersenne primes: A000668* (primes of form 2^p-1), A000043* (p values)

Mertens , sequences related to :

Mertens's conjecture: A059571*, A059572, A059581

Mertens's function: A002321*

Mertens's function: inverse of: A051400, A051401, A051402, A060434

Mertens's function: zeros of: A028442

mex (minimal excluded value) = least nonnegative integer not in the set: A080240, A080241

Mian-Chowla sequences, sequences related to :

Mian-Chowla sequences: A005282, A051788, A058335

Mian-Chowla sequences: see also A080200, A080201, A080932, A080933

Miller-Rabin primality test: see pseudoprimes

Mills primes: A051254*

Mills's constant: A051021*

min(x,y): A003983*, A004197*

minimal norm, sequences related to :

minimal norm: A005136 A006984 A028950 A029550 A029551 A029755 A029756 A038501

minimal numbers: A007416

minimal sequence: A002938

Minkowski's question mark function, sequences related to :

Minkowski's question mark function, fixed points: A058914*, A120221*, A048817, A048818, A048819, A048820, A048821, A048822

Minkowski's question mark function, global maximum of ?(x)-x: A119719

Minkowski's question mark function, inverse: A065937

Minkowski's question mark function, values obtained at: 1/Pi: A119926 (A119927), 6/Pi^2: A119922 (A119923), Pi: A119924 (A119925), e: A120025 (A120026)

Minkowski's question mark function, values obtained at: Khinchin's constant: A119928 (A119929), Levy's constant: A120028 (A120029)

Minkowski's question mark function: see also Index entries for sequences related to Stern's sequences

misleading plots: see deceptive plots

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Mo

mobiles , sequences related to :

mobiles : A032143, A032160, A032200*, A032202, A038037*

mobiles : A106364

mobiles, 2-colored: A032161, A032172, A032174, A032201, A032204, A032257, A032290, A032293, A052716, A108531, A108532

mobiles, asymmetric: A032171*, A032172, A032174 A032256, A032257, A032259, A055363-A055371

mobiles, by generators, A108526*, A108527-A108529

mobiles, dyslexic: A032218, A032235, A032236, A032237, A032238, A032256, A032257, A032259, A032274, A032289*, A032290, A032292, A032293, A038038*

mobiles, increasing: A029768*, A055356-A055362

mobiles, leaves, A055340*, A055341-A055348, A055349*, A055350-A055371

mobiles, series-reduced: A032163, A032174, A032188, A032203*, A032204, A032292, A032293

mobiles: see also rooted trees

Mobius: see Moebius

mobius: see Moebius

Mock theta numbers:: A000025, A000039, A000199

mod(x,y): A051126*, A051127*

models (in statistics), sequences related to :

models (in statistics): A006126, A006602, A006896, A006897, A006898, A079263, A079265, A000112

modest numbers: A054986*, A007627, A055018

modular forms, modular function, etc. sequences related to :

modular forms: A006352, A006353, A006354

modular function g_2: A003296

modular function G_2: A005760, A006352

modular function g_3: A003297

modular function G_3: A005761

modular function g_4: A005757

modular function G_4: A005762

modular function g_5: A005758

modular function g_6: A005759

modular function G_6: A005764

modular functions (1):: A006709, A002512, A002507, A002511, A002510, A002508, A005760, A005761, A006710, A002509, A005764, A003295, A005762

modular functions (2):: A006707, A006708, A005758, A005757, A005759, A000706

modular group, cusp forms for: see cusp forms

modular groups: see groups, modular

Moebius (or Mobius) function mu(n) , sequences related to :

Moebius (or Mobius) function mu(n): A008683*, A007423, A002321, A002996

Moebius function, infinitary: A064179

Moebius function: the official symbol in the OEIS is mu (see A008683), not MoebiusMu nor mobius, etc., except in Maple, Mma, etc lines where it cannot be changed

Moebius is the official spelling of this name in the OEIS (except in Maple, Mma, etc lines where it cannot be changed)

Moebius transform: see Transforms file

Moebius transforms:: (1) A007432, A007444, A007427, A007554, A003238, A007435, A007436, A007445, A007438, A007431, A007428, A007425

Moebius transforms:: (2) A007551, A007434, A007426, A007429, A007437, A007430, A007433

Molecular species:: A007649

Molien series , sequences from :

Molien series, harmonic: A008924

Molien series, of 4-D groups (1): A005916 A008610 A008623 A008627 A008643 A008650 A008667 A008668 A008669 A008670 A008718 A013977

Molien series, of 4-D groups (2): A013978 A028249 A028288 A030533 A068491 A078404 A078411

Molien series: (1+x^10+x^20)/((1-x^6)*(1-x^15)): A008651

Molien series: (1+x^15)/((1-x^2)*(1-x^6)*(1-x^10)): A008613

Molien series: (1+x^15)/((1-x^2)*(1-x^6)*(1-x^15)): A005868

Molien series: (1+x^21)/((1-x^4)*(1-x^6)*(1-x^14)): A008614

Molien series: (1+x^3)/(1-x^2)^2: A028242

Molien series: (1+x^4)/((1-x)*(1-x^3)^2*(1-x^5)): A028288

Molien series: (1+x^6+x^9+x^15)/((1-x^4)*(1-x^12)): A008647

Molien series: (1+x^9)/((1-x)*(1-x^4)*(1-x^6)*(1-x^12)): A008718

Molien series: (1+x^9)/((1-x^4)*(1-x^6): A008647

Molien series: -/1,2,3,4: A001400

Molien series: -/1,2,4,6: A099770

Molien series: -/1,2,4,8: A008643

Molien series: -/1,2: A008619

Molien series: -/1,3,4,6: A008670

Molien series: -/1,3,5: A008672

Molien series: -/1,3,7: A025768

Molien series: -/1,3,9,27: A008650

Molien series: -/1,3,9: A008649

Molien series: -/1,3: A008620

Molien series: -/1,4,16: A008652

Molien series: -/1,4,6,7,9,10,12,15: A008582

Molien series: -/1,4,8: A092352

Molien series: -/1,4: A008621

Molien series: -/1,5,25: A008648

Molien series: -/1,5: A002266

Molien series: -/1,6: A097992, A054895

Molien series: -/12,18,24,30: A008667

Molien series: -/2,12,20,30: A008668

Molien series: -/2,12: A097992

Molien series: -/2,2,11: A008723

Molien series: -/2,3,5,6: A029143

Molien series: -/2,3: A008615

Molien series: -/2,5,6,8,9,12: A008584

Molien series: -/2,6,10: A008672

Molien series: -/2,6,8,10,12,14,18: A008593

Molien series: -/2,6,8,12: A008670

Molien series: -/2,8,12,14,18,20,24,30: A008582 (E_8)

Molien series: -/2,8: A008621

Molien series: -/4,12: A008620

Molien series: -/4,6,10,12,18: A008666

Molien series: -/4,6,7: A008622

Molien series: -/4,6: A008615

Molien series: -/4,8,12,20: A008669

Molien series: -/6,12,18,24,30,42: A008581

Molien series: -/8,24: A008620

Molien series: 0+2+4/3,3: A008611

Molien series: 0+20+40/12,30: A008651

Molien series: 0+3+4+5/2,2,3,6: A051630

Molien series: 0+6+9+15/4,12: A008647

Molien series: 0+8+16/2,4,6: A028309

Molien series: 1/((1-x)*(1-x^2)^2*(1-x^3)): A008763

Molien series: 1/((1-x)*(1-x^3)): A008620

Molien series: 1/((1-x)*(1-x^4)): A008621

Molien series: 1/((1-x^2)*(1-x^3)*(1-x^5)*(1-x^6)): A029143

Molien series: 1/((1-x^2)*(1-x^5)*(1-x^6)*(1-x^8)*(1-x^9)*(1-x^12)): A008584

Molien series: 10/1,2,3,4,5: A008628

Molien series: 10/1,2,3,5: A020702

Molien series: 10/2,3,4,5: A090492

Molien series: 12/2,6,8,12: A028249

Molien series: 12/4,8,8: A004652

Molien series: 12/6,8: A008612

Molien series: 15/1,2,3,4,5,6: A008629

Molien series: 15/2,6,10: A008613

Molien series: 18/1,4,8,12: A092508

Molien series: 18/2,8,12,24: A008718

Molien series: 18/8,12,24: A090176

Molien series: 18/8,12: A008647

Molien series: 2/1,1,2,3: A014126

Molien series: 2/1,1,3: A007980

Molien series: 21/4,6,14: A008614

Molien series: 3/1,2,2,4: A005232

Molien series: 3/1,2,3: A007997

Molien series: 3/1,2: A028310

Molien series: 4/1,3,3,5: A028288

Molien series: 4/2,2,3: A008796

Molien series: 40/4,8,12,20: A020702

Molien series: 45/6,12,30: A005868

Molien series: 5/3,4: A091972

Molien series: 6/1,2,3,4: A008627

Molien series: 6/1,3,4: A036410

Molien series: 6/2,3,4: A008742

Molien series: 6/4,4: A028242

Molien series: 6/4,8: A008624

Molien series: 8/1,2,3,4: A008769

Molien series: 8/1,4: A092533

Molien series: 9/2,4,6: A008743

Molien series: for Aut(Leech) or Con.0: A008925, A008924

Molien series: for J2: A005813

MOLS, see Latin squares, mutually orthogonal

money: see sequences offering a monetary reward

monoids , sequences related to :

monoids , see also semigroups

monoids : A058129*, A058133*, A058153*, A058154

monoids, asymmetric: A058130*, A058134, A058135, A058136*, A058140, A058141, A058150-A058152

monoids, by idempotents: A058137*, A058138-A058145, A058146*, A058147-A058152, A058157*, A058158-A058160

monoids, commutative: A058131*, A058134, A058142, A058143, A058150, A058155*, A058156, A058159, A058160

monoids, free: A005345

monoids, Girard: A034786

monoids, idempotent: A005345, A058112*

monoids, number of multiplications needed for: A075099

monoids, ordered: A030453

monoids, self-converse: A058132*, A058135, A058144-A058146, A058151

Monster , sequences related to :

Monster simple group, McKay-Thompson series for: see McKay-Thompson series

Monster simple group: A003131*, A001379*, A002267, A051161

months: of year: A008685*, A031139

months: see also calendar

Montreal solitaire:: A007048, A007075, A007049, A007050, A007046, A007076

Moon (1987), "Some enumerative results on series-parallel networks", sequences mentioned in :

Moon (1987), "Some enumerative results on series-parallel networks": (1) A000311 A000669 A006351 A058379 A058380 A058381 A058385 A058386 A058387 A058388 A058406 A058475

Moon (1987), "Some enumerative results on series-parallel networks": (2) A058476 A058477 A058478 A058479 A058480 A058488 A058494 A058495

Moran numbers: A001101*

more terms needed!, see sequences that need extending

more terms needed!, see also huge web page with full list of sequences that need extending

morphisms, fixed points of, see: fixed points of mappings

mosaic numbers: A000026*

Moser-de Bruijn sequence: sums of distinct powers of 4: A000695*

most significant bit (msb): A053644, A000523

motifs: A007017*

Motzkin numbers, sequences related to :

Motzkin numbers: A001006*

Motzkin numbers: see also A005554

Motzkin triangle: A026300*, A020474, A064189

Motzkin triangle: see also A005322, A005323, A005324, A005325

mousetrap game, sequences related to :

mousetrap game: A002467 A002468 A002469 A007709 A007710 A018931 A018932 A018933 A018934 A028305 A028306

Mozart: A064172 A027884 A027885

Mozart: see also music

Mrs Perkins's quilt: A005670, A005842, A089046, A089047

msb = most significant bit: A053644, A000523

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Mu

Mu Torere: A005655

mu(n): A008683*

mu(n): see Moebius function

MU-numbers: A007335

mult: keyword meaning multiplicative, that is, a(m*n) = a(m)*a(n) whenever g.c.d.(m,n) = 1

multifactorial numbers: A000142, A006882, A007661, A007662, A085157, A085158, A114799, A114800, A114800, A114806.

multigraphs, sequences related to :

multigraphs: (1) A000421 A001374 A001399 A002620 A003082 A004102 A004104 A004105 A005965 A005966 A007717 A014395

multigraphs: (2) A014396 A014397 A014398 A020554 A020555 A020556 A020557 A020558 A020559 A020560 A020561 A020562

multigraphs: (3) A020563 A020564 A020565 A050531 A050532 A050535 A050927 A050929 A050930 A052107 A052108 A052111

multigraphs: (4) A052112 A052113 A052114 A052151 A052152 A052170 A052171 A053400 A053420 A053421 A053465 A053466

multigraphs: (5) A053467 A053468 A053513 A053514 A053515 A053516 A053517 A053588 A063841* A063842 A063843

Multinomial coefficients:: A005651

Multiplication-cost:: A005766

Multiplicative encodings:: A007280, A007188, A007190, A007189, A007338

multiplicative means that a(m*n) = a(m)*a(n) whenever g.c.d.(m,n) = 1

multiplicative order , sequences related to :

multiplicative order of 2 mod n, ord(2,n): A002326

multiplicative order of m mod n, ord(m, n) where GCD(n,m)=1: A002326, A053446, A053447, A053448, A053449, A053450, A053451, A053452, A053453, A054711

multiplicative order of m mod n, ord(m,n), sequences related to: (1) A037226 A046932 A053006 A053453

multiplicative order of m mod n, ord(m,n), sequences related to: (2) A057764 A059499 A059885 A059886 A059887 A059888 A059889 A059890 A059891 A059892 A059907 A059908

multiplicative order of m mod n, ord(m,n), sequences related to: (3) A059909 A059910 A059911

multiplicative, completely , sequences related to :

multiplicative, completely (00): means that a(m*n) = a(m)*a(n) for all m and n >= 1

multiplicative, completely (01): A000004 A000007 A000012 A000027 A000035 A000265 A000290 A000578 A000583 A000584 A001014 A001015 A001016 A001017 A001477 A003958 A003959 A003960

multiplicative, completely (02): A003961 A003962 A003963 A003964 A003965 A006519 A008454 A008455 A008456 A008836 A010801 A010802 A010803 A010804 A010805 A010806 A010807 A010808

multiplicative, completely (03): A010809 A010810 A010811 A010812 A010813 A011582 A011583 A011584 A011585 A011586 A011587 A011588 A011589 A011590 A011591 A011558 A011592 A011593

multiplicative, completely (04): A011594 A011595 A011596 A011597 A011598 A011599 A011600 A011601 A011602 A011603 A011604 A011605 A011606 A011607 A011608 A011609 A011610 A011611

multiplicative, completely (05): A011612 A011613 A011614 A011615 A011616 A011617 A011618 A011619 A011620 A011621 A011622 A011623 A011624 A011625 A011626 A011627 A011628 A011629

multiplicative, completely (06): A011630 A011631 A028310 A034947 A036987 A038500 A038502 A055975 A057427 A060904 A061109 A061142 A061898 A063524 A064553 A064558 A064614 A064988

multiplicative, completely (07): A064989 A065330 A065331 A065332 A065333 A065338 A065371 A065372 A066260 A066261 A071785 A071786 A072010 A072012 A072026 A072027 A072028 A072029

multiplicative, completely (08): A072084 A072085 A072087 A072436 A072438 A072963 A079065 A079579 A079707 A080891 A086299 A089081 A091684 A091685 A091703 A093709 A098108 A101455

multiplicative, completely (09): A102440 A102441 A108548 A108951 A112347 A113175 A120119 A122261 A123667 A122968-A122971

multiplicative, strongly: see multiplicative, completely

multiplicative, totally: see multiplicative, completely

multiplicatively perfect numbers: A007422*

multiply-perfect numbers: A007539*, A007691*

music, sequences related to :

music: Beethoven: A001491, A054245, A123456

music: Mozart: A064172 A027884 A027885

music: Norgard, Per: A004718* A005811 A073334 A083866 A135564 A135567 A135689 A135690 A135692 A136004

music: scales: A071831/A071832, A071833

mutinous numbers: A027854

mutually orthogonal Latins squares, see Latin squares, mutually orthogonal

M\"{o}bius: see Moebius function

M\'{e}nage: see permutations, menage and polynomials, menage

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_N

n -> 3n - sigma(n), sequences related to :

n -> 3n - sigma(n): A033885, A033945, A033946, A037159, A037160, A058541, A058542, A058545

n appears n times: A002024*, A003056, A001462, A007401, A004797

n divides concatenation of all numbers up through n , sequences related to :

n divides concatenation of all numbers up through n: (01) A029471 A029472 A029473 A029474 A029475 A029476 A029477 A029478 A029479 A029480 A029481 A029482

n divides concatenation of all numbers up through n: (02) A029483 A029484 A029485 A029486 A029487 A029489 A029490 A029491 A029492 A029493 A029494 A029495

n divides concatenation of all numbers up through n: (03) A029496 A029497 A029498 A029499 A029500 A029501 A029502 A029503 A029504 A029505 A029506 A029507

n divides concatenation of all numbers up through n: (04) A029508 A029509 A029510 A029511 A029513 A029514 A029515 A029516 A029517 A029518 A029519 A029520

n divides concatenation of all numbers up through n: (05) A029521 A029522 A029523 A029524 A029525 A029526 A029527 A029528 A029529 A029530 A029531 A029532

n divides concatenation of all numbers up through n: (06) A029533 A029534 A029535 A029536 A029537 A029538 A029539 A029540 A029541 A029542 A061931 A061932

n divides concatenation of all numbers up through n: (07) A061933 A061934 A061935 A061936 A061937 A061938 A061939 A061940 A061941 A061942 A061943 A061944

n divides concatenation of all numbers up through n: (08) A061945 A061946 A061947 A061948 A061949 A061950 A061951 A061952 A061953 A061954 A061955 A061956

n divides concatenation of all numbers up through n: (09) A061957 A061958 A061959 A061960 A061961 A061962 A061963 A061964 A061965 A061966 A061967 A061968

n divides concatenation of all numbers up through n: (10) A061969 A061970 A061971 A061972 A061973 A061974 A061975 A061976 A061977 A061978

n divides sum of digits of k^n: A175169, A067862, A067864, A067863

n reversed, R(n): A004086

n!!, see factorial numbers, double

n!+1: A038507*, A002583, A051301, A056111

n!-1 is prime: see factorial primes

n!-1: A033312*, A002582, A054415, A056110

n!/2: A001710

n!: A000142*

n!: see also factorial numbers

n# (1st definition of primorial numbers: product of primes <= n): A034386*, A002110

N-free graphs: A007596*

n-phi-torial: A001783*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Na

Narayana , sequences related to :

Narayana triangle (also called Catalan triangle): A001263*

Narayana-Zidek-Capell numbers: A002083*

narcissistic numbers, sequences related to :

narcissistic numbers: A005188*

narcissistic numbers: see also A003321, A014576, A033842, A023052, A046074

natural numbers, sequences related to :

natural numbers, A000027*

natural numbers, in base 2: A000042; see also A038102

natural numbers, in bases -2 through -10: A039724, A073785, A007608, A073786, A073787, A073788, A073789, A073790, A039723

natural numbers, in bases 1 through 10: A000042, A007088, A007089, A007090, A007091, A007092, A007093, A007094, A007095, A000027

natural numbers, rearrangement of (2): A075086, A075087, A075375, A075378, A075380, A075383, A075562, A075563, A075564, A075566, A075567

natural numbers, rearrangement of (3): A075616, A075617, A075618, A076053, A076099, A076123, A077220, A078840, A082748, A083164, A083180

natural numbers, rearrangement of (4): A083762, A084035, A084337, A084393, A084398, A085100, A085875, A086496, A086512, A086537, A087559

natural numbers, rearrangement of (5): A089560, A089562, A089564, A089566, A089568, A089570, A089572, A089710, A094339, A095167, A096113

natural numbers, rearrangement of (6): A103849, A103877, A109890, A110354, A111679, A128280, A130108, A130109, A130110, A130111

natural numbers, rearrangement of (conjectured or otherwise)(1): A065263, A073666, A073672, A073673, A073675, A073678, A073842, A075085

natural numbers, see also: A007432, A003137, A007376, A007062, A007431, A003607, A007429, A007466, A007550, A007430

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ne

near-rings, sequences related to :

near-rings: A037221*

necklaces , sequences related to :

necklaces , A000031*, A000358, A007997, A008610, A008646, A008965, A032191-A032197

necklaces, 2 colors, no turning over, primitive: A001037*

necklaces, 2 colors, no turning over: A000031*, A066318*

necklaces, 2 colors, turning over allowed, primitive: A001371*

necklaces, 2 colors, turning over allowed: A000029*

necklaces, 3-colored, A001867*, A032179*

necklaces, 3-colored, A106365

necklaces, 4-colored, A001868*

necklaces, 4-colored, A106366

necklaces, 5-colored, A001869*

necklaces, 5-colored, A106367

necklaces, 6-colored, A106368

necklaces, aperiodic: see Lyndon words

necklaces, array of, A075195

necklaces, asymmetric: see Lyndon words

necklaces, balanced, A000108, A003239*, A007147, A045629

necklaces, charged, A042943, A045611, A045612

necklaces, complements are equivalent, A000013*, A045629, A058813

necklaces, multicolored, A054625-A054629

necklaces, permutations, A003322

necklaces, reversible, see also bracelets

necklaces, triangle of, A047996*, A052311, A052312, A052313, A054630, A054631

necklaces, triangle, A047996*, A052311, A052312, A052313

necklaces: see also (1): A000016, A000046, A002075, A002076, A002729, A005594, A007977, A027882, A032180-A032184, A032189

necklaces: see also (2): A032190, A032198, A032199, A045674-A045678, A007769, A029744

necklaces: see also (2): A106369

necklaces: see also bracelets

necklaces: see also Lyndon words

negative numbers: A001478*

Negative pseudo-squares:: A001984

neofields: A006609*

nets, sequences related to :

nets: A005929, A002880, A004106, A004103*, A005928, A004105, A004107

nets: see also under graphs

networks, sequences related to :

networks:: A001677, A006246, A001573, A006351, A006245, A001574, A001572, A006248, A006349, A006350, A001575

next prime , sequences related to :

next prime after terms of various sequences: see under previous prime

next prime, A007918

next prime: version 1: A007918, version 2: A151800

nexus numbers , sequences related to :

nexus numbers (1): A047969 A022521 A022522 A022523 A022524 A022525 A022526 A022527 A022528 A022529 A022530 A022531 A022532

nexus numbers (2): A022533 A022534 A022535 A022536 A022537 A022538 A022539 A022540 A079547

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ni

Niemeier lattices, sequences related to :

Niemeier lattices, theta series of (cf. SPLAG p. 407) (1): A008688 A047803 A008411 A008689 A008690 A008691 A047804 A008692 A008693 A008694 A008695 A047805 A047806 A008696

Niemeier lattices, theta series of (cf. SPLAG p. 407) (2): A008697 A008698 A008699 A047807 A008700 A008701 A008702 A008703 A008704 A008408

nilpotent numbers: A056867, A056868

Nim-addition: see Nim-sums

Nim-multiplication , sequences related to :

Nim-multiplication in Maple: see A051775*, A051776*

Nim-multiplication table: A051775*, A051776*, A051910*, A051911*

Nim-multiplication, inverses: A051917

Nim-multiplication, squares: A006042

Nim-multiplication: see also (1) A004468 A004469 A004470 A004471 A004472 A004473 A004474 A004475 A004476 A004477 A004478 A004479

Nim-multiplication: see also (2) A004480 A006015 A006017 A058734

Nim-products: see Nim-multiplication

Nim-sums , sequences related to :

Nim-sums in Maple: see A003987*, A051933*

Nim-sums table: A003987*, A051933*

Nim-sums: see also (1) A004442 A004443 A004444 A004445 A004446 A004447 A004448 A004449 A004450 A004451 A004452 A004453

Nim-sums: see also (2) A004454 A004455 A004456 A004457 A004458 A004459 A004460 A004461 A004462 A004463 A004464 A004465

Nim-sums: see also (3) A004514 A004515 A004516 A004517 A004518 A004519 A004520 A004521 A004522 A038712 A038713 A054517

Nim:: A006015, A003413, A003412, A006042, A006017, A001581

nineish numbers (decimal expansion contains a 9): A011539

Niven numbers: A005349*

Niven's constant: A033151*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_No

no-three-in-line problem: A000769*

no-three-in-line problem: see also A000755, A037185, A037186, A037187, A037188, A037189, A107355, A007402, A000938

Noergaard, Per: see Norgard, Per

nome: see Index entries for sequences related to the Jacobi nome

non-collinear points in cube: A003142

Non-Hamiltonian:: A007030, A007031, A007032, A007033

non-mathematical sequences , sequences related to :

non-mathematical sequences (00): a tentative list courtesy of Franklin T. Adams-Watters

non-mathematical sequences (01): A000053, A000054, A001049, A001356, A001491, A002651, A003671-A003673,

non-mathematical sequences (02): A003675-A003678, A003786, A005600, A005601, A006833, A006834, A007656,

non-mathematical sequences (03): A007826, A008684-A008686, A008744-A008746, A009734, A011554, A011763,

non-mathematical sequences (04): A011765, A011766, A011770, A011771, A027440, A027884, A027885, A029925,

non-mathematical sequences (05): A029915-A029928, A031139, A033171-A033174, A038674, A051121, A053401,

non-mathematical sequences (06): A053402, A053406, A054245, A055069, A056958, A056997-A056999,

non-mathematical sequences (07): A057347-A057350, A057430, A057720, A058317, A058318, A060512, A060513,

non-mathematical sequences (08): A060958, A061251, A063516, A064172, A064265-A064267, A064296,

non-mathematical sequences (09): A070058-A070060, A070062-A070064, A070273, A072171, A072550, A072915,

non-mathematical sequences (10): A073304, A073305, A078300-A078302, A080915, A080916, A081098-A081101,

non-mathematical sequences (11): A081244, A081245, A081799-A081803, A081813-A081826, A084427, A084989,

non-mathematical sequences (12): A085735, A087778, A090232, A090651, A091786, A091978, A093907, A097105,

non-mathematical sequences (13): A098476, A100000, A100017, A100487, A100488, A101111, A101284-A101287,

non-mathematical sequences (14): A101312, A101358, A101647-A101649, A101944, A104019, A104034, A104101,

non-mathematical sequences (15): A106605, A106806, A107273-A107276, A109553, A109618, A109952, A111167,

non-mathematical sequences (16): A113529, A114062, A115100, A115417, A116369, A116386, A116448, A117635,

non-mathematical sequences (17): A118652, A118661, A118662, A119406, A120441, A121818, A122559, A123456

Non-separable:: A006402, A002218, A006411, A006412, A006415, A006413, A006414, A006441

nonagon is spelled 9-gon in the OEIS

nonagonal is spelled 9-gonal in the OEIS

noncubes: A007412*

nonnegative integers: A001477*

nonpositive integers: A001489*

nonprimes: A018252* (nonprimes), A002808* (composites), A014076* (odd composites)

nonrepetitive sequences: A003270, A003324

nonrepetitive sequences: see also Thue-Morse sequences

nonsquares: A000037*

nontotients: A007617*, A005277

Norgard, Per, sequences related to :

Norgard, Per: A004718

Norgard, Per: see also A005811 A073334 A083866 A135564 A135567 A135689 A135690 A135692 A136004

Norwegian: A014656, A028292, A092407

Norwegian: see also Index entries for sequences related to number of letters in n

not a product of earlier terms, see: smallest number not a product of earlier terms

not always integral: A003504, A005166, A005167

notation in OEIS: see spelling and notation

noughts and crosses: see tic-tac-toe

NSW numbers: A002315*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Nu

number of positive integers <= 10^n that are divisible by no prime exceeding p: A066343 A100752 A106598 A106600 A107352 A108274 A108275 A108276 A108277

number of primes <= x: A000720*

number of primes <= x: see also pi(x)

number of syllables to represent n: A002810, A045736

number of ways the set (1^k, 2^k, ..., n^k) can be partitioned into two sets of equal sums: k=1 A058377, k=2 A083527, k=3 A113263, k=4 A111253

number of words to represent n: A001167

number theory, unsolved problems in: see unsolved problems in number theory (selected)

numbers congruent to ... mod n: see "congruent to ..."

numbers n such that 2^k + n is prime for all k (empty: see A076336)

numbers n such that n*2^k + 1 is composite for all k: A076336

numbers n such that n*2^k + 1 is prime for all k (empty: see A076336)

numbers n written in bases 1, 2, 3, 4, ...: A000042, A007088, A007089, A007090, ...

numbers of form k_1 k_2 .. k_n (1/k_1 + .. + 1/k_n), k_i >= 1: A025052, A027563, A027564, A027565, A027566, A055745

numbers that contain a 0: A011540

numbers that contain a 1: A011531

numbers that contain a 2: A011532

numbers that contain a 3: A011533

numbers that contain a 4: A011534

numbers that contain a 5: A011535

numbers that contain a 6: A011536

numbers that contain a 7: A011537

numbers that contain a 9: A011539

numbers that contain an 8: A011538

numbers whose cube is a palindrome: A002760

numbers, automorphic: see automorphic numbers

numbers, Bernoulli: see Bernoulli numbers

numbers, Euler: see Euler numbers

numbers, Eulerian: see Euler numbers

numbers, feral: see wild numbers

numbers, Gaussian, see Gaussian integers

numbers, octal: see octal numbers

numbers, perfect: A000396*, A002827* (unitary), A007539 (n-fold)

numbers, tri-perfect: A005820

numbers, triperfect: A005820

numbers, triply perfect: A005820

numbers, wild: see wild numbers

numeri idonei: see Index entries for sequences related to Euler's idoneal numbers

numerus idoneus: see Index entries for sequences related to Euler's idoneal numbers

Nynorsk: A028292

Nynorsk: see also Index entries for sequences related to number of letters in n

n^(n+1): A007778

n^(n-1): A000169*

n^(n-2): A000272*

n^(n-3): A007830

n^2 == n mod K, sequences related to :

n^2 == n mod K: K=1 or 2: A001477, K=3: A032766, K=4: A042948, K=5: A008851, K=6: A032766, K=7: A047274, K=8: A047393, K=9: A090570, K=10: A008851, K=11: A112651, K=12: A112652, K=13: A112653, K=14: A047274, K=15: A151972, K=16: A151977, K=17: A151978, K=19: A151979, K=20: A151980, K=24: A151973, K=30: A151975, K=32: A151983, K=48: A151981, K=64: A151984

n^2-n+41 is prime: A002837

n^n: A000312*, A014566

n^n^...^n, number of distinct values taken by: A002845, A003018, A003019

n_3 configurations: see configurations (combinatorial or geometrical)

n_n: A122618

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_O

O'Nan group: A003919, A008625

obtaining numbers from other numbers and the operations of addition, subtraction, etc: see under four 4's problem

octagonal numbers: A000567*

octahedral numbers: A005900*

octahedron, truncated: see truncated octahedron

octahedron: A005899

octal numbers, sequences related to :

octal numbers, not: A057104

octal numbers: A007094

octupi: A029767*

odd numbers , sequences related to :

odd numbers n such that 2^k + n is composite for all k: see A076336

odd numbers, fake: A080591

odd numbers: A005408*

odd numbers: see also A000700, A000069, A007697, A006046, A007455, A007482, A000593, A007483, A006945, A001033, A002309, A006285, A002594, A006038

odd unimodular lattices, see: lattices, unimodular

odious numbers: A000069*

omega(n), number of distinct primes dividing n: A001221

Omega(n), total number of primes dividing n: A001222

one local maximum, arrays with: A007846, A000079, A087518, A087783*, A087923-A087932

one odd, two even, etc.: A001614

one puddle: see one local maximum

ones-counting sequence: A000120

open problems: see also unsolved problems in number theory (selected)

open problems: try searching in the OEIS for the following words: conjecture, apparently, appears, seems, probably, etc.

operational recurrences: A001577*

Opmanis's nice base-dependent sequence: A177834

optimal rulers: see perfect rulers

OR(x,y): A003986*

OR: A007460, A006583

orchard problem: A003035*, A006065, A008997

order or orders, sequences related to :

order, binary: A029837

order, multiplicative order of 2 mod n: A002326

order, ord(x,y): the multiplicative order of x mod y, see entries under: multiplicative order

order: see also under multiplicative order

ordered factorizations: A074206*, A002033

ordered partitions: see also under partitions

orders, total: see total orders

orders, weak: A000790

orders: A000670, A004123, A004122, A004121

orders: see also hierarchies

ordinals: A005348

Ore numbers: A001599*, A001600

orthogonal arrays, sequences related to :

orthogonal arrays, number of: A039931*, A039927*, A048885*

orthogonal arrays, see also: A008286, A039930, A048164, A048638, A048893, A049082, A049083

orthogonal groups: A003053*, A001051

out-points: A003025, A003026

overpartitions: A015128

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Pac

p-adic square roots in PARI: A051276, A051277

p-adic valuations: A001511, A007949, A051064, A055457

packing squares: A005842

Packings:: A001224, A005842, A003012, A004021

Padovan sequence: A000931*

Pair-coverings:: A006185, A006186, A006187

pairs of relatively prime numbers, sequences related to :

pairs of relatively prime numbers: A018805*, A100449

palindromes , sequences related to :

palindromes, A002113*, A061917

palindromes, "pi" for: A136687, A137180

palindromes, characteristic function of: A136522

palindromes, in base 2: A057148*, A006995*, A062014, A062019

palindromes, in bases 10 and n: (1): A007632, A007633, A029961, A029962, A029963, A029964, A029804, A029965, A029966, A029967, A029968, A029969,

palindromes, in bases 10 and n: (2): A029970, A029731, A097855, A099165

palindromes, in bases 2 through 10: A006995, A014190, A014192, A029952, A029953, A029954, A029803, A029955, A002113

palindromes, intrinsic: A060873-A060879, A060947-A060949

palindromes, multiples of n which give: A062279, A061674, A062293, A061797, A050782, A050810

palindromes, populations of: A050250, A050683, A050251, A050684, A050685

palindromes, see also (1): A007500, A002778, A007633, A007573, A002780, A006995, A007632, A003098, A007616, A003166, A002779, A002069

palindromes, see also (2): A002781, A006960

palindromic primes: see primes, palindromic

palindromic squares: A003166 for base 2, A029984 for base 3, A029986 for base 4, A029988 for base 5, A029990 for base 6, A029992 for base 7, A029805 for base 8, A029994 for base 9, A002778 for base 10, A029996 for base 11, A029733 for base 16, A118651 for base 17

palindromic squares: see also A016106, A028818, A059744, A059745

palindromic, not: non-palindromic numbers: A033868, A016038, A047811, A050813

panarithmic numbers: A005153*

pancake numbers: A000124*

paper-folding sequences: see folding a piece of paper

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Par

para-Fibonacci sequences, sequences related to :

para-Fibonacci sequences: A019586*, A035612*

paradoxical sequences, sequences related to :

paradoxical sequences: A053169*, A091967, A031135, A037181

paradoxical sequences: see also diagonal sequences

parasitic numbers: see transposable numbers

parentheses, ways to arrange , sequences related to :

this includes towers of exponents such as 2^2^...^2 (which is A002845)

parentheses, ways to arrange: (1) A000081* A000108* A001003* A001190* A001699* A047929 A054026 A057546 A061855 A071153 A075729 A078623

parentheses, ways to arrange: (2) A079216 A079217 A000311 A001147 A002845 A003006 A003007 A003008 A003018 A003019 A145545 A145546 A145547 A145548 A145549 A145550 A198683 A049006 A077589 A077590

parentheses, ways to arrange: see also Catalan numbers

parenthesized in 2 ways: A006895

PARI , sequences related to :

PARI code for printing a square array or table by antidiagonals: A025581*, A002262*, A004736*, A002260*, A004070*

PARI code for printing a triangle by rows: A003056*, A002024*, A003057*, A055086*, A073188*, A000194*

PARI code for sequences obtained by concatenating strings: A005713*

PARI code for sequences obtained by repeated substitutions: A005614*

PARI code for set of digits of n in base k: A000695*

PARI: see also Dirichlet series

parity sequence: A010060

partially ordered sets: see posets

partially ordered sets: see also Lattices

partition functions for lattices, sequences related to :

partition functions for lattices: A002890, A002891, A001393, A002892, A001407, A001406

partitions , sequences related to :

partitions, A000041*

Partitions, A002300, A007209, A002099, A001144, A002098, A000065, A002622, A002040, A007312, A002039, A002164, A006628

partitions, average number of parts: see A006128

partitions, binary: A000123*, A018819

partitions, bipartite: see "partitions, into pairs"

partitions, graphical: A000569*, A004250*, A004251*, A029889*, A007721* (connected graphs)

partitions, graphical: see also graphical partitions

partitions, graphical: see also A007722, A029890, A029891, A029892, A029893, A029894, A029895

partitions, into distinct parts: "partitions of n into distinct parts >= k" and "partitions of n into distinct parts, the least being k-1" come in pairs of closeley related sequences: A025147, A096765 (k=2); A025148, A096749 (k=3); A025149, A026824 (k=4); A025150, A026825 (k=5); A025151, A026826 (k=6); A025152, A026827 (k=7); A025153, A026828 (k=8); A025154, A026829 (k=9); A025155, A026830 (k=10); A096740, A026831 (k=11)

partitions, into distinct parts: A000009*, A000700 (distinct odd parts)

partitions, into distinct primes: A000586*

partitions, into even number of parts: A027187

partitions, into Fibonacci numbers: see Fibonacci numbers, number of ways to write n as a sum of

Partitions, into non-integral powers, A000135, A000148, A000158, A000160, A000234, A000263, A000298, A000327, A000333, A000339, A000345, A000347, A000397

partitions, into odd number of parts: A027193

partitions, into odd parts: A000009

Partitions, into pairs, A054225, A054242, A006199, A006198, A006200, A090806

partitions, into parts 5k+-1: A003114*

partitions, into parts 5k+-2: A003106*

Partitions, into parts of m kinds, A000070, A000097, A000098, A000710, A000712, A000713, A000714, A000715, A000711, A000716

Partitions, into powers, A003108, A005706, A005705, A005704, A002572

Partitions, into prime parts, A000586, A007359, A002100, A007360, A000607*, A002095, A000726

partitions, into primes: A000607*, A000586 (distinct primes)

partitions, into relatively prime parts: A051424*

partitions, into triangular numbers: A007294

partitions, m-ary: A000123, A018819, A005704, A005705, A005706

Partitions, maximal, A002569

Partitions, mixed, A002096

Partitions, multi-dimensional, A000334, A000390, A000416, A000427, A002721

Partitions, multi-line, A003292, A000990, A000991, A002799, A001452

partitions, non-squashing: A000123, A018819, A088567, A088575, A088585, A089300, A089292

partitions, notes on (01): When considering partitions of n (initially labeled) objects, we may:

partitions, notes on (02): (1) Allow the "blocks" to be empty - so more generally refer to "pieces"

partitions, notes on (03): (2) Order the pieces - so consider "sequences" of pieces instead of "collections"

partitions, notes on (04): (3) Order the elements within the pieces - so consider "lists" instead of "sets"

partitions, notes on (05): (4) Erase the labels on the objects - this produces partitions or compositions of integers

partitions, notes on (06): With these considerations in mind, we define 6 rows of a table. The columns are defined by formulating various conditions on how many objects can be in the pieces. The six rows are:

partitions, notes on (07): Row A: Sequences of lists of labeled elements (e.g. books on shelves)

partitions, notes on (08): Row B: Sequences of sets of labeled elements (i.e. ordered partitions)

partitions, notes on (08): Row C: Sequences of multisets on one color of marble (i.e. compositions)

partitions, notes on (09): Row D: Collections of lists of labeled elements (e.g. stacks of books)

partitions, notes on (10): Row E: Collections of sets of labeled elements (i.e. set partitions)

partitions, notes on (11): Row F: Collections of multisets on one color of marble (i.e. integer partitions)

partitions, notes on (12): In the columns, m is the number of marbles and b is the number of bins

partitions, notes on (13): Column 1: m elements. Each block has at least 1 element (and number of blocks varies)

partitions, notes on (14): Column 2: m elements. Each block has at least 2 elements (and number of blocks varies)

partitions, notes on (15): Column 3: m elements. Each block has 1 or 2 elements (and number of blocks varies)

partitions, notes on (16): Column 4: b blocks. Each block has exactly 2 elements (and there are 2b elements)

partitions, notes on (17): Column 5: b pieces. Each piece has 0 or 1 elements (and number of elements varies)

partitions, notes on (18): Column 6: b pieces. Each piece has 0, 1, or 2 elements (and number of elements varies)

partitions, notes on (19): Column 7: b blocks. Each block has 1 or 2 elements (and number of elements varies)

partitions, notes on (20): OEIS # Col 1 Col 2 Col 3 Col 4 Col 4 Col 6 Col 7

partitions, notes on (21): Row A A002866 A052554 A005442 A010050 A000522 A082765 A099022

partitions, notes on (22): Row B A000670 A032032 A080599 A000680 A000522 A003011 A105749

partitions, notes on (23): Row C A011782 A000045 A000045 A000012 A000079 A000244 A000079

partitions, notes on (24): Row D A000262 A052845 A047974 A001813 A000027 A105747 A001517

partitions, notes on (25): Row E A000110 A000296 A000085 A001147 A000027 A105748 A001515

partitions, notes on (26): Row F A000041 A002865 A008619 A000012 A000027 A000217 A000027

partitions, notes on (27): Reference: R. A. Proctor, Let's Expand Rota's Twelvefold Way for Counting Partitions! arXiv math.CO.0606404

partitions, number of parts in all: A006128

partitions, numbers n such that P(k*n) is prime, where P(n) is the number of partitions of n: A046063, A114165, A111389, A111045, A114166, A111036, A114167, A114168, A114169, A114170, A113499, A115214

partitions, odd: A000009

partitions, of a polygon: A002058, A002059, A002060

partitions, of a polygon: see also dissections

partitions, of n into 4 squares: A002635*

partitions, of n into 4th powers: A046042*

partitions, of 5n: see separate page Partitions of 5n

Partitions, of points on a circle, A001005

Partitions, of unity, A002966, A006585

Partitions, order-consecutive, A007052

partitions, partition numbers, prime: A046063, A114165, A111389, A111045, A114166, A111036, A114167, A114168, A114169, A114170, A114171

partitions, perfect: A002033

partitions, planar: A000219*, A001522, A001523, A001524, A089300, A089299, A089292

Partitions, planar:: A000784, A005987, A000786, A003293, A000785, A005986, A005157, A006366, A002659, A002660, A002791, A002800

partitions, protruded: A005403, A005404, A005405, A005406, A005407, A005116

Partitions, refinements of, A002846

partitions, restricted (1):: A002637, A002635, A002471, A002636, A007690, A001156, A007294, A003105, A003106, A003114

partitions, restricted (2):: A002865, A001399, A006950, A001972, A007279, A001971, A001400, A001401, A001402, A002573

partitions, restricted (3):: A002574, A002843, A005895, A006827, A007511, A005896, A001976, A001975, A002219, A001978

partitions, restricted (4):: A006477, A001977, A001980, A001979, A002220, A001982, A001981, A002221, A002222

Partitions, rotatable, A002722, A002723

partitions, solid (1): A000293* A000294 A002835 A002836 A005980 A037452 A080207 A002043 A002936 A002974 A002044 A002045

partitions, solid (2): A082535

partitions, square: A008763, A089299

partitions, total number of parts: A006128

partitions, total: A000311* (labeled), A000669* (labeled)

partitions, total: see also total orders

partitions, triangle of number of partitions of n in which greatest part is k: A008284*

partitions, triangle of number of partitions of n into k parts: A008284*

partitions, wide: A070830

partitions: see also expansions of product_{k >= 1} (1-x^k)^m

partitions: see also under compositions

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Pas

Pascal triangle , triangles related to :

Pascal triangle, triangles and arrays related to: A007318* (main entry), A008949, A034851, A047999, A050186, A052509, A052511, A052553, A054123, A054124

Pascal triangle, triangles and arrays related to: (cont.) A055372-A055376, A055883, A055894

Pascal triangle: A006047, A007188, A006921, A006046, A001317, A006048, A006943, A006940

Pascal's rhombus: A059317*, A059318-A059320, A006190

Pascal's square: A059674

Paths in plane:: A006858, A006859

paths in square grid: A000984

Paths through arrays:: A006675, A006676

patience: A051921

Patterns:: A002619, A002618, A007574

pay-phones , triangles related to :

pay-phones: A095236*, A095237, A095239, A095240, A095698, A095912, A095923

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Pea

Peaks:: A000487

Peanuts cartoon sequences: A006345, A006346

pebble problem: A201144, A183110, A054531

pedal triangles: A102536

peeling rinds: A005675

Pell numbers, generalized: see Fibonacci numbers, generalized

Pell numbers: A000129*

Pell numbers: see also A002349, A006704, A006702, A002203, A006705, A006703, A001932, A003153, A001571, A001582, A002350, A001570

Pell's equation: see Pellian equation

Pellian equation , sequences related to :

Pellian equation x^2 - D*y^2 = 1: smallest solution (x,y) as D runs through primes: (A081233, A081234), (A081231, A082394), (A081232, A082393)

Pellian equation x^2 - D*y^2 = 1: smallest solution (x,y): (A002450, A002349)

Pellian equation: John Robertson's web page on solving Pell's equation

Pellian equation:: A006704, A006702, A006705, A006703, A003153, A001571, A001570

pennies:: A005575, A005577, A005576, A001524, A072065

Pentanacci numbers:: A001591, A000322

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Per

percolation series , sequences related to :

percolation series (1):: A006462, A006731, A006808, A006727, A006461, A006836, A006732, A006734, A006728, A006730

percolation series (2):: A006462, A006731, A006808, A006727, A006461, A006836, A006732, A006734, A006728, A006730

percolation series (3):: A006742, A006738, A006733, A006729, A006837, A006803, A006807, A006804, A006739, A006835

percolation series (4):: A006813, A006809, A006735, A006810, A006838, A006805, A006811, A006740, A006736, A006806, A006812, A006741, A006737

perfect lattices: see lattices, perfect

Perfect matchings, A005271

perfect numbers: A000396*, A002827* (unitary), A007539 (n-fold)

perfect partitions: A002033*

perfect powers: A001597*, A007916, A023055, A023057

perfect rulers , sequences related to :

perfect rulers: A004137, A104305-A104310, A103294-A103301

perfect rulers: see also Golomb rulers

perfect years: A061013

Perfect:: A002033, A004026, A002839, A007346, A007422, A007357, A005820

period of continued fraction for sqrt(n) , sequences related to :

period of continued fraction for sqrt(n), length of: A003285*, A097853

period of continued fraction for sqrt(n), see: sqrt(n), length of period of continued fraction for

period of reciprocal of n: see 1/n

period of reciprocal of nth prime: see 1/p

Periodic differences:: A002081

Periodic sequences:: A000035, A000034

periodic table: A007656*, A058317, A058318

Periods:: A003285, A006447, A006883, A002329

Permanents:: A003113, A000794, A005326, A003112, A000804, A000805

permutation groups: see groups, permutation

permutations , sequences related to :

Permutations, alternating: A000111*, A007289, A007286, A005981, A006873, A005982, A005983

permutations, asymmetric: A000899

Permutations, Baxter, A001183, A001181, A001185

permutations, bitriangular: A006230

Permutations, by cycles, A005225, A005772

Permutations, by descents, A002538, A002539

permutations, by distance: A002524, A002525, A002526, A002527, A002528, A002529, A000045, A072856, A154654, A154655, A154656, A154657, A154658, A154659

Permutations, by inversions, A001892, A000707, A001893, A001894, A005287, A005283, A005284, A005285

Permutations, by length of runs, A001251, A001252, A001253, A000303, A000402, A000434, A000456, A000467, A000517

Permutations, by number of peaks, A000487

Permutations, by number of runs, A000352, A000363, A000486, A000506, A000507

Permutations, by number of sequences, A001759, A001760

permutations, by numbers of consecutive ascending and descending pairs, triangles of: A001100, A086856, A010028

permutations, by numbers of consecutive ascending and descending pairs: A002464, A086852, A086853, A086854, A086855, A001266, A000130, A000349, A001267, A001268

Permutations, by order, A001472, A005388, A001471, A001470, A001189, A001473

Permutations, by rises, A000130, A000239, A001277, A000274, A000544, A001279, A000313, A000349, A001260, A001261, A001266, A001267, A001278, A001268, A001280, A001282

Permutations, by spread, A004206, A004205, A004204

Permutations, by subsequences, A002628, A005802, A002629, A002630, A003316, A001454, A001455, A001456, A001457, A001458

permutations, connected: A003319

Permutations, cycles in, A006694

Permutations, descending subsequences of, A006219, A006220

Permutations, discordant, A002634, A000183, A002633, A000270, A000380, A000388, A000561, A000440, A000562, A000470, A000563, A000476, A000492, A000564, A000500, A000565

permutations, even: A001710*, A003221, A000704

permutations, graceful: A006967

permutations, indecomposable: A003319

Permutations, inequivalent, A003510

Permutations, inversions in, A000140

Permutations, isolated reformed, A007712

Permutations, key, A003274

permutations, largest order of: A000793*, A002809

Permutations, maximal order of, A000793, A002809

Permutations, menage, A002484

permutations, menage: see also menage numbers

Permutations, necklace, A003322

Permutations, odd, A001465

permutations, of n letters: A000142*

permutations, of order 2: A001189*, A001185*

permutations, of order dividing k, for k=2,3,4,5,... (1): A000085 A001470 A001472 A053495 A053496 A053497 A053498 A053499 A053500 A053501

permutations, of order dividing k, for k=2,3,4,5,... (2): A053502 A053503 A053504 A053505 A005388

permutations, of the positive (or nonnegative) integers , sequences related to :

permutations, of the integers, conjectured: A064389 (This entry needs to be greatly expanded!)

permutations, of the integers, each paired with its inverse: ( 1) A003188-A006068 A004484-A064206 A004485-A064207 A004486-A064208 A004487-A064211 A029654-A064360

permutations, of the integers, each paired with its inverse: ( 2) A064413-A064664 A032447-A064275 A035312-A035358 A035506-A064357 A035513-A064274 A047708-A048850

permutations, of the integers, each paired with its inverse: ( 3) A048672-A064273 A048673-A064216 A048679-A048680 A052330-A064358 A059900-A059884

permutations, of the integers, each paired with its inverse: ( 4) A052331-A064359 A054238-A054239 A054424-A054426 A054427-A054428 A064706-A064707 A034175-A064928

permutations, of the integers, each paired with its inverse: ( 5) A064929-A064930 A057027-A064578 A054082-A064579 A065164-A065168 A065165-A065169 A065166-A065170

permutations, of the integers, each paired with its inverse: ( 6) A065171-A065172 A065174-A065175 A065181-A065182 A065183-A065184 A065186-A065187 A065188-A065189

permutations, of the integers, each paired with its inverse: ( 7) A006368-A006369 A057114-A057115 A054084-A064786 A053212-A064787

permutations, of the integers, each paired with its inverse: ( 8) A060736-A064788 A054068-A054069 A057028-A064789

permutations, of the integers, each paired with its inverse: ( 9) A060734-A064790 A064537-A064791 A064736-A064745 A065249-A065250 A065259-A065260

permutations, of the integers, each paired with its inverse: (10) A065263-A065264 A065265-A065266 A065269-A065270 A065271-A065272 A065275-A065276 A065277-A065278

permutations, of the integers, each paired with its inverse: (11) A065281-A065282 A065283-A065284 A065287-A065288 A065289-A065290 A065253-A065254 A065306-A065307

permutations, of the integers, each paired with its inverse: (12) A004515-A065256 A065257-A065258 A064417-A064956 A064418-A064958 A064419-A064959 A036552-A065037

permutations, of the integers, each paired with its inverse: (13) A065649-A065650 A065627-A065628 A065629-A065630 A065631-A065632 A065633-A065634 A065635-A065636

permutations, of the integers, each paired with its inverse: (14) A065637-A065638 A065639-A065640 A065660-A065661 A065662-A065663 A065664-A065665 A065666-A065667

permutations, of the integers, each paired with its inverse: (15) A065668-A065669 A065670-A065671 A065672-A065673 A065561-A065578 A065562-A065579 A065934-A065935

permutations, of the integers, each paired with its inverse: (16) A066248-A066249 A066250-A066251 A067587-A066884 A068225-A068226 A072061-A072062

permutations, of the integers, each paired with its inverse: (17) A072732-A072733 A072734-A072735 A072793-A072794 A074305-A074306 A074307-A074308

permutations, of the integers, each paired with its inverse: (18) A051261-A077226 A084469-A084470 A084453-A084454 A084455-A084466 A084459-A084460

permutations, of the integers, each paired with its inverse: (19) A084461-A084462 A084489-A084490 A084491-A084492 A084493-A084494 A084495-A084496

permutations, of the integers, each paired with its inverse: (20) A084497-A084498 A084499-A084530 A098003-A098485 A194988-A194989

permutations, of the integers, induced by Catalan rerankings, each paired with its inverse: (1) A071651-A071652, A071653-A071654, A072634-A072635, A072636-A072637, A072656-A072657, A072658-A072659

permutations, of the integers, induced by Catalan rerankings, each paired with its inverse: (2) A072646-A072647, A072787-A072788, A072764-A072765, A072766-A072767, A075161-A075162, A075168-A075169

permutations, of the integers, self-inverse: (01): A000027, A002251, A003100, A004442, A004488, A011262, A014681, A018220, A018221, A018222,

permutations, of the integers, self-inverse: (02): A019444, A020703, A026239, A026250, A026255, A026262, A038722, A048647, A054429, A054430,

permutations, of the integers, self-inverse: (03): A056011, A056019, A056023, A056539, A057163, A057164, A057300, A057508, A059893, A059894,

permutations, of the integers, self-inverse: (04): A060125, A061579, A061898, A064429, A064505, A064614, A065190, A065652, A069766, A069769,

permutations, of the integers, self-inverse: (05): A069771, A069772, A069787, A069888, A069889, A071065, A072026, A072027, A072028, A072029,

permutations, of the integers, self-inverse: (06): A072356, A072796, A072797, A072798, A072799, A073280, A073281, A073675, A073842, A074066,

permutations, of the integers, self-inverse: (07): A074067, A074068, A080412, A081241, A083569, A084483, A085240, A086572, A086962, A086963,

permutations, of the integers, self-inverse: (08): A086964, A088337, A094510, A094681, A100527, A100830, A106649, A108590, A108591, A108592,

permutations, of the integers, self-inverse: (09): A108593, A108599, A108971, A109233, A109236, A109239, A109250, A109261, A110119, A114538,

permutations, of the integers, self-inverse: (10): A114578, A114579, A114882, A115094, A115182, A115303, A115304, A115305, A115306, A115307,

permutations, of the integers, self-inverse: (11): A115308, A115309, A117120, A117303, A118012, A120229, A120230, A120913, A122111, A125566,

permutations, of the integers, self-inverse: (12): A125979, A125980, A126009, A126290, A126320, A127387, A127388, A129594, A129608, A130339,

permutations, of the integers, self-inverse: (13): A130340, A130373, A130374, A130918, A130981, A130982, A131173, A132340, A132664, A132665,

permutations, of the integers, self-inverse: (14): A132666, A132667, A132668, A132669, A132670, A132671, A132672, A132673, A132674, A135044,

permutations, of the integers, self-inverse: (15): A137662, A137805, A138236, A153150, A154125, A154126, A159253, A159586, A159587, A159588,

permutations, of the integers, self-inverse: (16): A160652, A162750, A162853, A163327, A163332, A163333, A163807, A164088, A165199, A166166,

permutations, of the integers, self-inverse: (17): A166404

permutations, of the integers, signature-permutations induced by Catalan automorphisms, sequences related to :

permutations, of the integers, signature-permutations of Catalan automorphisms, (01) A057163 A057164 A057508 A069766 A069769 A069770 A069771 A069772 A069787 A069888 A069889

permutations, of the integers, signature-permutations of Catalan automorphisms, (02) A072796 A072797 A073280 A073281 A082313 A082314

permutations, of the integers, signature-permutations of Catalan automorphisms, (03) A057117-A057118 A057161-A057162 A057501-A057502 A057503-A057504 A057505-A057506 A057509-A057510

permutations, of the integers, signature-permutations of Catalan automorphisms, (04) A057511-A057512 A069767-A069768 A069773-A069774 A069775-A069776 A071661-A071662 A071663-A071664

permutations, of the integers, signature-permutations of Catalan automorphisms, (05) A071665-A071666 A071667-A071668 A071669-A071670 A071655-A071656 A071657-A071658 A071659-A071660

permutations, of the integers, signature-permutations of Catalan automorphisms, (06) A072090-A072091 A072092-A072093 A072094-A072095 A072621-A072622 A072088-A072089 A073269-A073270

permutations, of the integers, signature-permutations of Catalan automorphisms, (07) A073282-A073283 A073284-A073285 A073286-A073287 A073288-A073289 A073194-A073195 A073196-A073197

permutations, of the integers, signature-permutations of Catalan automorphisms, (08) A073198-A073199 A073205-A073206 A073207-A073208 A073209-A073210 A073290-A073291 A073292-A073293

permutations, of the integers, signature-permutations of Catalan automorphisms, (09) A073294-A073295 A073296-A073297 A073298-A073299 A074679-A074680 A074681-A074682 A074683-A074684

permutations, of the integers, signature-permutations of Catalan automorphisms, (10) A074685-A074686 A074687-A074688 A074689-A074690 A082315-A082316 A082317-A082318 A082319-A082320

permutations, of the integers, signature-permutations of Catalan automorphisms, (11) A082321-A082322 A082323-A082324 A082325-A082326 A082331-A082332 A082333-A082334 A082335-A082336

permutations, of the integers, signature-permutations of Catalan automorphisms, (12) A082337-A082338 A082339-A082340 A082341-A082342 A082345-A082346 A082347-A082348 A082349-A082350

permutations, of the integers, signature-permutations of Catalan automorphisms, (13) A082351-A082352 A082353-A082354 A082355-A082356 A082357-A082358 A082359-A082360

permutations, of the integers, tables of: A003987 A018219 A054081 A065167 A073200

permutations, of the integers: see also A066252, A066253, A066254, A066255

permutations, permutation arrays:: A005677, A006841

permutations, quasi-alternating: A000708, A001758

Permutations, restricted, A003407, A006595, A003011, A002777, A000382, A007016, A000496

permutations, self-conjugate: A000085

permutations, self-inverse: A000085*

permutations, special: A003109, A003110, A003111

permutations, square: A003483

permutations, symmetric: A000900, A000901, A000902

permutations, unreformed: A007711

permutations, with a square root: A003483

permutations, with fixed points: A002467*

permutations, with no fixed points: A000166*

Permutations, with no hits, A003471, A000316, A000459

Permutations, with strong fixed points, A006932

permutations, zero-entropy: A006948

Perrin sequence: A001608*

persistence , sequences related to :

persistence (additive): A006050*, A031286* and A045646*

persistence (multiplicative): A003001* and A031346*

persistence: see also powertrain

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ph

phi : see golden ratio phi

phi(n) (A000010): see totient function phi(n)

Phi(n): A005728*

phi, Phi: A000108, A001006, A007477, A025262, A025268

pi(x), sequences related to :

pi(x), number of primes <= x: A000720*

pi(x), pi(10^n): A006880

Pi, sequences related to :

Pi, continued cotangent for: A002667*

Pi, continued fraction for: A001203*

Pi, continued fraction for: records: A007541, A033089, A033090

Pi, convergents to: A002485*/A002486*

Pi, decimal expansion of: A000796*

Pi, see also (1): A007514 A006941 A000796* A001355 A001203 A007523 A005042 A002667 A006524 A002161 A007541 A001467

Pi, see also (2): A001466 A002388 A006934 A005149 A005148 A068089 A068079 A068028 A049534 A101815 A101816

Pi, strings of digits in: ( 1) A014976, A050201, A050202, A083598, A083599, A083600, A083601

Pi, strings of digits in: ( 2) A053745, A050208, A050209, A083602, A083603, A083604, A083605

Pi, strings of digits in: ( 3) A053746, A050215, A083606, A083607, A083608, A083609

Pi, strings of digits in: ( 4) A053747, A050222, A083610, A083611, A083612, A083613, A083614

Pi, strings of digits in: ( 5) A053748, A050230, A083615, A083616, A083617, A083618, A083619

Pi, strings of digits in: ( 6) A053749, A050238, A083620, A083621, A083622, A083623, A083624

Pi, strings of digits in: ( 7) A053750, A050245, A083625, A083626, A083627, A083628, A083629, A083630

Pi, strings of digits in: ( 8) A053751, A050254, A083631, A083632, A083633, A083634, A083635, A083636

Pi, strings of digits in: ( 9) A053752, A050263, A083637, A083638, A083639, A083640, A083641

Pi, strings of digits in: (10) A053753, A050272, A083642, A083643, A083644, A083645, A083646

piano keyboard: A059620*, A079731, A060106, A060107, A081031, A081032

picture-perfect numbers: A069942

pieces: see also under partitions

Pierce expansions: A006275, A006276, A006283, A006284

Pierpont primes: see primes, Pierpont

Pisano numbers: see Pisano periods

Pisano periods: A001175*

Pisano periods, generalized: listed in R. J. Mathar, A Table of Pisano Period Lengths (1) A000032 A000034 A000045 A000051 A000073 A000129 A000213 A000225 A000285 A000290 A000292 A000578 A001045 A001060 A001075 A001076 A001175 A001333 A001353 A001519 A001590 A001608 A001644 A001834 A001906 A002532 A002533 A002605 A002878 A003462 A003665 A003688 A005248 A005668 A006012 A006130 A006131 A006138 A006190 A006355

Pisano periods, generalized: listed in R. J. Mathar, A Table of Pisano Period Lengths (2) A006495 A007070 A007482 A009116 A009545 A010892 A013655 A014551 A014983 A015440 A015441 A015442 A015443 A015518 A015519 A015521 A015523 A015530 A015531 A015532 A015535 A015537 A015540 A015541 A015551 A015564 A015568 A015574 A015576 A015580 A015584 A015587 A015591 A016116 A020695 A020701 A020712 A020992 A021006 A022086

Pisano periods, generalized: listed in R. J. Mathar, A Table of Pisano Period Lengths (3) A022095 A022097 A022098 A022099 A022100 A022101 A022102 A022103 A026150 A028859 A030195 A038608 A038754 A046717 A046738 A048573 A048693 A048694 A049347 A052533 A052918 A054490 A055099 A056594 A057079 A057087 A057088 A057597 A057681 A061084 A061347 A063727 A072263 A072265 A077917 A077957 A077966 A077985 A078008 A078020

Pisano periods, generalized: listed in R. J. Mathar, A Table of Pisano Period Lengths (4) A078069 A083099 A083858 A085750 A087451 A090132 A090591 A094359 A098149 A098150 A099087 A099843 A104217 A104769 A104934 A105476 A106291 A106293 A107920 A108520 A110512 A122994 A123335 A125905 A130472 A132429 A164539 A174191 A175181 A175182 A175183 A175184 A175185 A175286 A175289 A175290 A175291 A186646

Pisot sequences, sequences related to :

Pisot sequences, definition: A008776*

Pisot sequences, warning about recurrences for: A010925

Pisot sequences: ( 1) A000051 A000079 A000244 A000302 A000351 A000400 A000420 A001018 A001019 A001519 A004171 A007283

Pisot sequences: ( 2) A007484 A007699 A008776 A009056 A010900 A010901 A010902 A010903 A010904 A010905 A010906 A010907

Pisot sequences: ( 3) A010908 A010909 A010910 A010911 A010912 A010913 A010914 A010915 A010916 A010917 A010919 A010920

Pisot sequences: ( 4) A010922 A010924 A010925 A011557 A014001 A014002 A014003 A014004 A014005 A014006 A014007 A014008

Pisot sequences: ( 5) A018910 A018914 A018920 A019492 A020695 A020696 A020698 A020701 A020702 A020704 A020705 A020706

Pisot sequences: ( 6) A020707 A020708 A020709 A020710 A020711 A020712 A020713 A020714 A020715 A020716 A020717 A020718

Pisot sequences: ( 7) A020719 A020720 A020721 A020722 A020723 A020727 A020728 A020729 A020730 A020732 A020734 A020735

Pisot sequences: ( 8) A020736 A020737 A020739 A020741 A020742 A020743 A020744 A020745 A020746 A020747 A020748 A020749

Pisot sequences: ( 9) A020750 A020751 A020752 A021000 A021001 A021004 A021006 A021008 A021011 A021013 A021014 A048575

Pisot sequences: (10) A048576 A048577 A048578 A048579 A048580 A048581 A048582 A048583 A048584 A048585 A048586 A048587

Pisot sequences: (11) A048588 A048589 A048590 A048591 A048592 A048624 A048625 A048626 A051016 A051017

planar , sequences related to :

planar graphs: see graphs, planar

planar vs plane: some authors make a distinction between "plane", meaning embedded in the plane with a distinguished exterior region, and "planar", meaning embedded in the sphere (with no distinguished region)

Planck's constant: A003676

plastic constant: A060006

plastic number: A060006

plots, misleading: see deceptive plots

plus perfect numbers: A005188*

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Poi

Poincare , sequences related to :

Poincare conjecture: A001676*

Poincare series: see Molien series

pointed connected graphs: A126100; pointed connected planar graphs: A126201; pointed curves: A074059, A074060; pointed groupoids: A006448, A038015, A038016, A038017; pointed groups: A126103, A126102; pointed polyominoes: A126202; pointed rooted trees: A000107, A000312; pointed trees = rooted trees: (A000081)

pointed objects: pointed algebras: see groupoids, pointed;

points on surface of various polyhedra, sequences related to :

points on surface of various polyhedra:: A005893, A005918, A005899, A005897, A005919, A005901, A005914, A005905, A005903, A005911

poker , sequences related to :

poker: (1) A002761 A002806 A002834 A002847 A002879 A003480 A007052 A007070 A014353 A014355 A014356 A014357

poker: (2) A014358 A014404 A053080 A053081 A053082 A053083 A053084 A053085 A053086 A057694 A057695 A057796

poker: (3) A057797 A057798 A057799 A057800 A057801 A057802 A057803 A057804 A057805 A057806 A057807 A057808

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Pol

Polish: see also Index entries for sequences related to number of letters in n

politeness: A069283

POLS, see Latin squares, mutually orthogonal

Polya's conjecture, sequences related to :

Polya's conjecture: A072203*, A028488

polyaboloes: A006074*

polyares: A057724, A057725

polycubes, sequences related to :

polycubes: A000162*

polycubes: see also polyominoes

polyedges: see polyominoes

polyforms, see polyominoes

polygamma function: A006955, A006956

polygonal numbers, sequences related to :

polygonal numbers, centered, see centered polygonal numbers

polygonal numbers: A057145*

polygonal numbers: for n=3..24 (1): A000217, A000290, A000326, A000384, A000566, A000567, A001106, A001107,

polygonal numbers: for n=3..24 (2): A051682, A051624, A051865, A051866, A051867, A051868, A051869, A051870,

polygonal numbers: for n=3..24 (3): A051871, A051872, A051873, A051874, A051875, A051876

polygonal numbers: see also A007419

polygons , sequences related to :

polygons (1):: A003401, A001004, A003455, A000940, A000939, A005036, A003456, A006725, A006724, A003450

polygons (2):: A003454, A003452, A005034, A003447, A005768, A005436, A002931, A006781, A005040, A003445

polygons (3):: A007169, A006782, A003442, A005038, A002058, A006743, A006774, A000207, A003453, A003449

polygons (4):: A003441, A001002, A006772, A003448, A005419, A006783, A001409, A002816, A003443, A002059

polygons (5):: A005397, A003451, A003444, A005035, A002293, A005039, A001397, A001396, A002895, A002060

polygons (6):: A007220, A005033, A006773, A005396, A002898, A005037, A002295, A002896, A007221, A002296

polygons (7):: A005398, A006726, A006726, A005770, A002055, A001335, A002899, A005769, A002056, A007160, A005782, A001413, A007222, A001337, A001667

polygons constructible with ruler and compass: A003401*

polygons constructible with ruler and compass: see also A000108 A004169 A004729 A005109 A049013

polygons inscribed in a circle: see also lacing a shoe

polygons with all diagonals drawn: see Poonen-Rubinstein paper

polyhedra , sequences related to :

polyhedra (1):: A007026, A002840, A007024, A006868, A006866, A007029, A007021, A002883, A006867, A006869, A000944, A007034, A002856

polyhedra (2):: A007030, A007023, A007022, A000287, A007027, A007025, A007028, A007036, A007031, A007032, A007037, A007035, A007033

polyhedra, allomorphic: A002883

polyhedra, regular: A060296, A053016, A063924, A063925, A063926, A063927, A063722

polyhedra: A000944*, A049337*, A000109* (simplicial)

polyhedra: see also polytopes

polyhes: A057712

polyhexes: see also polyominoes (hexagonal)

polyiamonds: A000577*

polyknights: A030444, A030445, A030446, A030447, A030448

polynomials , sequences related to :

polynomials: see also recurrences, linear

polynomials producing primes: see primes, produced by polynomials

Polynomials, Bell, A001861

polynomials, Bernoulli: see Bernoulli polynomials

Polynomials, Bessel, A001518, A001516, A001514, A001880, A001881

polynomials, Boolean: A169912, A169913, A169914

Polynomials, by height, A005409

Polynomials, characteristic, A006135, A006136

Polynomials, Chebyshev, A005583, A005584, A002680, A002700, A001793, A001794, A002697, A007701, A006974, A006975, A006976, A002698

Polynomials, cyclotomic, A007273, A004124

polynomials, cyclotomic, inverse, Phi(1..9): A033999, A049347, A056594, A010891, A010892, A014016, A014017, A014018

polynomials, cyclotomic, inverse, Phi(10..19): A014019, A014020, A014021, A014022, A014023, A014024, A014025, A014026, A014027, A014028

polynomials, cyclotomic, inverse, Phi(100..109): A014111, A014114

polynomials, cyclotomic, inverse, Phi(110..119): A014119, A014123, A014124, A014128

polynomials, cyclotomic, inverse, Phi(120..129): A014129, A014135

polynomials, cyclotomic, inverse, Phi(130..139): A014139, A014141, A014142, A014147

polynomials, cyclotomic, inverse, Phi(140..149): A014149, A014152, A014154

polynomials, cyclotomic, inverse, Phi(150..159): A014159, A014163, A014164, A014165

polynomials, cyclotomic, inverse, Phi(160..169): A014170, A014174, A014177

polynomials, cyclotomic, inverse, Phi(170..179): A014179, A014183, A014184

polynomials, cyclotomic, inverse, Phi(180..189): A014189, A014191, A014194, A014195, A014196

polynomials, cyclotomic, inverse, Phi(190..199): A014199, A014204, A014207

polynomials, cyclotomic, inverse, Phi(20..29): A014029, A014030, A014031, A014032, A014033, A014034, A014035, A014036, A014037, A014038

polynomials, cyclotomic, inverse, Phi(200..209): A014212, A014218

polynomials, cyclotomic, inverse, Phi(210..219): A014219, A014226

polynomials, cyclotomic, inverse, Phi(220..229): A014229, A014230

polynomials, cyclotomic, inverse, Phi(230..239): A014239, A014240, A014247

polynomials, cyclotomic, inverse, Phi(240..249): A014256

polynomials, cyclotomic, inverse, Phi(250..259): A014262, A014264, A014268

polynomials, cyclotomic, inverse, Phi(260..269): A014269, A014275

polynomials, cyclotomic, inverse, Phi(270..279): A014282

polynomials, cyclotomic, inverse, Phi(280..289): A014289, A014294, A014295, A014296

polynomials, cyclotomic, inverse, Phi(290..299): A014299, A014308

polynomials, cyclotomic, inverse, Phi(30..39): A014039, A014040, A014041, A014042, A014043, A014044, A014045, A014047, A014048

polynomials, cyclotomic, inverse, Phi(300..309): A014310, A014317

polynomials, cyclotomic, inverse, Phi(310..319): A014319, A014324, A014328

polynomials, cyclotomic, inverse, Phi(320..329): A014331, A014332, A014338

polynomials, cyclotomic, inverse, Phi(330..339): A014339

polynomials, cyclotomic, inverse, Phi(340..349): A014349, A014350, A014354

polynomials, cyclotomic, inverse, Phi(350..359): A014359, A014366

polynomials, cyclotomic, inverse, Phi(360..369): A014373

polynomials, cyclotomic, inverse, Phi(370..379): A014379, A014380, A014383, A014386

polynomials, cyclotomic, inverse, Phi(380..389): A014389, A014394

polynomials, cyclotomic, inverse, Phi(390..399): A014399, A014400, A014408

polynomials, cyclotomic, inverse, Phi(40..49): A014049, A014051, A014053, A014054, A014055, A014057

polynomials, cyclotomic, inverse, Phi(400..409): A014412, A014415, A014416

polynomials, cyclotomic, inverse, Phi(410..419): A014422, A014427

polynomials, cyclotomic, inverse, Phi(420..429): A014429, A014436, A014438

polynomials, cyclotomic, inverse, Phi(430..439): A014443, A014444, A014446

polynomials, cyclotomic, inverse, Phi(440..449): A014451

polynomials, cyclotomic, inverse, Phi(450..459): A014460, A014464

polynomials, cyclotomic, inverse, Phi(460..469): A014471, A014474, A014478

polynomials, cyclotomic, inverse, Phi(470..479): A014482, A014485

polynomials, cyclotomic, inverse, Phi(480..489): A014490, A014492

polynomials, cyclotomic, inverse, Phi(490..499): A014502, A014503, A014504, A014506

polynomials, cyclotomic, inverse, Phi(50..59): A014059, A014060, A014061, A014063, A014064, A014065, A014066, A014067

polynomials, cyclotomic, inverse, Phi(500..509): A014515

polynomials, cyclotomic, inverse, Phi(510..519): A014519, A014520, A014526, A014527

polynomials, cyclotomic, inverse, Phi(520..529): A014534, A014536

polynomials, cyclotomic, inverse, Phi(530..539): A014541, A014542, A014548

polynomials, cyclotomic, inverse, Phi(60..69): A014069, A014071, A014072, A014074, A014075, A014078

polynomials, cyclotomic, inverse, Phi(70..79): A014079, A014084, A014086, A014087

polynomials, cyclotomic, inverse, Phi(80..89): A014093, A014094, A014096

polynomials, cyclotomic, inverse, Phi(90..99): A014099, A014100, A014102, A014104, A014108

polynomials, cyclotomic, Phi(10..19): A010890

polynomials, cyclotomic, Phi(100..109): A011649, A011650

polynomials, cyclotomic, Phi(110..119): A011651, A011652, A011653, A011654

polynomials, cyclotomic, Phi(120..129): A016328, A016329

polynomials, cyclotomic, Phi(130..139): A016330, A016331, A016332, A016333

polynomials, cyclotomic, Phi(140..149): A016334, A016335, A016336

polynomials, cyclotomic, Phi(150..159): A016337, A016338, A016339

polynomials, cyclotomic, Phi(160..169): A016341, A016342, A016343

polynomials, cyclotomic, Phi(170..179): A016344, A016345, A016346

polynomials, cyclotomic, Phi(180..189): A016347, A016348, A016349, A016350, A016351

polynomials, cyclotomic, Phi(190..199): A016352, A016353, A016354

polynomials, cyclotomic, Phi(20..29): A011632

polynomials, cyclotomic, Phi(200..209): A016355, A016356

polynomials, cyclotomic, Phi(210..219): A016357, A016358

polynomials, cyclotomic, Phi(220..229): A016359, A016360

polynomials, cyclotomic, Phi(230..239): A016361, A016362, A016363

polynomials, cyclotomic, Phi(240..249): A016364

polynomials, cyclotomic, Phi(250..259): A016365, A016366, A016367

polynomials, cyclotomic, Phi(260..269): A016368, A016369

polynomials, cyclotomic, Phi(270..279): A016370

polynomials, cyclotomic, Phi(280..289): A016371, A016372, A016373, A016374

polynomials, cyclotomic, Phi(290..299): A016375, A016376

polynomials, cyclotomic, Phi(30..39): A011633, A011634

polynomials, cyclotomic, Phi(300..309): A016377, A016378

polynomials, cyclotomic, Phi(310..319): A016379, A016380, A016381

polynomials, cyclotomic, Phi(320..329): A016382, A016383, A016384

polynomials, cyclotomic, Phi(330..339): A016385

polynomials, cyclotomic, Phi(340..349): A016386, A016387, A016388

polynomials, cyclotomic, Phi(350..359): A016389, A016390

polynomials, cyclotomic, Phi(360..369): A016391

polynomials, cyclotomic, Phi(370..379): A016392, A016393, A016394, A016395

polynomials, cyclotomic, Phi(380..389): A016396, A016397

polynomials, cyclotomic, Phi(390..399): A016398, A016399, A016400

polynomials, cyclotomic, Phi(40..49): A011635, A011636

polynomials, cyclotomic, Phi(400..409): A016401, A016402, A016403

polynomials, cyclotomic, Phi(410..419): A016404, A016405

polynomials, cyclotomic, Phi(420..429): A016406, A016407, A016408

polynomials, cyclotomic, Phi(434..439): A016409, A016410, A016411

polynomials, cyclotomic, Phi(440..449): A016412

polynomials, cyclotomic, Phi(450..459): A016413, A016414

polynomials, cyclotomic, Phi(460..469): A016415, A016416, A016417

polynomials, cyclotomic, Phi(470..479): A016418, A016419

polynomials, cyclotomic, Phi(480..489): A016420, A016421

polynomials, cyclotomic, Phi(490..499): A016422, A016423, A016424, A016425

polynomials, cyclotomic, Phi(500..509): A016426, A016427, A016428

polynomials, cyclotomic, Phi(60..69): A011637, A011638, A011639, A011640

polynomials, cyclotomic, Phi(70..79): A011641, A011642

polynomials, cyclotomic, Phi(80..89): A011643, A011644

polynomials, cyclotomic, Phi(90..99): A011645, A011646, A011647, A011648

polynomials, cyclotomic: see also cyclotomic polynomials

Polynomials, discriminants of, A004124, A007701, A001782, A006312

polynomials, divisors of x^n-1: see divisors

polynomials, Euler: see Euler polynomials

Polynomials, Gandhi, A005440, A005989, A005990

Polynomials, Hammersley, A006846

polynomials, Hermite: see Hermite polynomials

Polynomials, hit, A001885, A001884, A004307, A001886, A001889, A001891, A001888, A001883, A001887, A001890, A004309, A004308

polynomials, irreducible over a finite field: (1) A002475, A056679, A056679, A057460, A057461, A057463, A057474, A057476, A057477, A057478, A057479, A057480,

polynomials, irreducible over a finite field: (2) A057481, A057482, A057483, A057484, A057485, A057487, A057488, A057489, A057496, A057751, A058059, A058203,

polynomials, irreducible over a finite field: (3) A058216, A058217, A058219, A058234, A058235, A058236, A058237, A058238, A058240, A058242, A058243, A058334,

polynomials, irreducible over a finite field: (4) A058857, A059006, A071428, A071522, A071565, A071566, A071642

polynomials, irreducible over GF(q), q >= 4: A058334, A058857, A059006, A071522, A071565, A071566

polynomials, irreducible, binary, degree divides n: A000031*

polynomials, irreducible, binary, degree n: A001037*, A058943*, A027375

polynomials, irreducible, over GF(2): see polynomials, irreducible, binary

polynomials, irreducible, over GF(3), degree divides n: A001693*, A001867

polynomials, irreducible, over GF(3), degree n: A027376*

polynomials, irreducible, over GF(4), degree divides n: A001868, A054719

polynomials, irreducible, over GF(4), degree n: A027377*

polynomials, irreducible, over GF(5): A001692

polynomials, irreducible, over GF(7): A001693

polynomials, irreducible: see also trinomials over GF(2)

polynomials, Laguerre: see Laguerre polynomials

polynomials, Legendre: see Legendre polynomials

Polynomials, menage, A000033, A000159, A000181, A000185, A000425

polynomials, monic irreducible over finite fields: A058944, A058948, A058945, A058946

Polynomials, orthogonal, A002690, A002691

polynomials, over GF(2): see also GF(2)[X]-polynomials, sequences operating on

Polynomials, period, A006308, A006311, A006309, A006312, A006310

polynomials, polynomial identities: A005729

polynomials, primitive: A000020 A011260* A027385 A027695 A027741 A027743 A027744 A027745 A058947*

polynomials, primitive: see also trinomials over GF(2)

Polynomials, relatively prime, A001115

Polynomials, rook, A004306, A001924, A005777, A001925, A001926, A005778

polynomials, Shapiro: A001782

polynomials, trinomials irreducible over GF(2): (2) A057483, A057751

polynomials, trinomials irreducible over GF(3): (1) A058059, A058235, A058236, A058237, A058238, A058240, A058242, A058243, A058234, A058203, A058217, A058216,

polynomials, trinomials irreducible over GF(3): (2) A058219

polyominoes , sequences related to :

polyominoes (1):: A001933, A001071, A006748, A002215, A001420, A006958, A003104, A000104, A002216, A006746, A001169, A001170, A001168

polyominoes (2):: A006027, A000988, A002214, A006986, A005519, A005435, A005963, A006766, A000228, A006535, A002212, A001207

polyominoes (3):: A006026, A001931, A006759, A006767, A006534, A006765, A006762, A006770, A006760, A006747, A006749, A002213, A006758, A001419, A006768, A006761, A006763, A006764

polyominoes : A000105*

polyominoes, 3-dimensional: A000162*

polyominoes, hexagonal: A000228*, A006535, A018190, A030225, A001998, A002216, A005963, A036359

polyominoes, indecomposable: A125709 A125753 A125759 A125761 A126742 A126743

polyominoes, rotationally symmetric: A006747

polyominoes, sets of four that are related: A000988, A000105, A151514, A002013

polyominoes, sets of four that are related: A006534, A000577, A151517, A151518

polyominoes, sets of four that are related: A006535, A000228, A151515, A151516

polyominoes, sets of four that are related: A151519, A006074, A151520, A151521

polyominoes, sets of four that are related: A151522, A056780, A151523, A151527

polyominoes, sets of four that are related: A151522, A056783, A151523, A151524

polyominoes, sets of four that are related: A151528, A057786, A151529, A151530

polyominoes, sets of four that are related: A151531, A057784, A151532, A151533

polyominoes, sets of four that are related: A151534, A159866, A151535, A151536

polyominoes, sets of four that are related: A151537, A019988, A151538, A037245

polyominoes, sets of four that are related: A151539, A159867, A151540, A151541

polyominoes, triangular: A000577*

polyominoes: see also animals

polyominoes; full list of sequences related to: (001) A000096 A000104 A000105 A000108 A000139 A000142 A000162 A000166 A000228 A000254 A000337 A000522

polyominoes; full list of sequences related to: (002) A000577 A000891 A000984 A000988 A001003 A001053 A001071 A001168 A001169 A001170 A001207 A001224

polyominoes; full list of sequences related to: (003) A001394 A001399 A001405 A001419 A001420 A001519 A001524 A001700 A001764 A001787 A001788 A001835

polyominoes; full list of sequences related to: (004) A001844 A001870 A001931 A001933 A001998 A002013 A002212 A002213 A002214 A002215 A002216 A002467

polyominoes; full list of sequences related to: (005) A002538 A002620 A002627 A002694 A002894 A003104 A003167 A003480 A004003 A005178 A005435 A005436

polyominoes; full list of sequences related to: (006) A005519 A005768 A005769 A005770 A005803 A005963 A006013 A006026 A006027 A006074 A006318 A006534

polyominoes; full list of sequences related to: (007) A006535 A006659 A006724 A006743 A006746 A006747 A006748 A006749 A006758 A006759 A006760 A006761

polyominoes; full list of sequences related to: (008) A006762 A006763 A006764 A006765 A006766 A006767 A006768 A006770 A006958 A007317 A007743 A007808

polyominoes; full list of sequences related to: (009) A007846 A008275 A008574 A008592 A008602 A008776 A010683 A011117 A014559 A016933 A016957 A017293

polyominoes; full list of sequences related to: (010) A017341 A017569 A018190 A019439 A019988 A022144 A022444 A022445 A024311 A026106 A026118 A026298

polyominoes; full list of sequences related to: (011) A027709 A028247 A028399 A030222 A030223 A030224 A030225 A030226 A030227 A030228 A030233 A030234

polyominoes; full list of sequences related to: (012) A030235 A030435 A030436 A030444 A030445 A030446 A030447 A030448 A030519 A030520 A030525 A030529

polyominoes; full list of sequences related to: (013) A030532 A030534 A033184 A033484 A033877 A033878 A034010 A036359 A036364 A036365 A036366 A036367

polyominoes; full list of sequences related to: (014) A036368 A036369 A036496 A037245 A038119 A038140 A038141 A038142 A038143 A038144 A038145 A038146

polyominoes; full list of sequences related to: (015) A038147 A038392 A038577 A038578 A038579 A038622 A038718 A038731 A039625 A039626 A039627 A039628

polyominoes; full list of sequences related to: (016) A039629 A039630 A039631 A039632 A039633 A044043 A044045 A044046 A044047 A045445 A045648 A045649

polyominoes; full list of sequences related to: (017) A046697 A046984 A047749 A047875 A048489 A048664 A049219 A049220 A049221 A049222 A049429 A049430

polyominoes; full list of sequences related to: (018) A049540 A051738 A051743 A053022 A053090 A053091 A053151 A054359 A054360 A054361 A054963 A055022

polyominoes; full list of sequences related to: (019) A055024 A055581 A055588 A056755 A056769 A056779 A056780 A056783 A056840 A056841 A056844 A056845

polyominoes; full list of sequences related to: (020) A056846 A056877 A056878 A056879 A056880 A056881 A056882 A056883 A056884 A057051 A057418 A057419

polyominoes; full list of sequences related to: (021) A057420 A057422 A057423 A057424 A057425 A057426 A057707 A057712 A057721 A057724 A057725 A057729

polyominoes; full list of sequences related to: (022) A057730 A057753 A057766 A057779 A057784 A057786 A057973 A059483 A059573 A059678 A059679 A059680

polyominoes; full list of sequences related to: (023) A059681 A059682 A059683 A059684 A059716 A060677 A061667 A063130 A063655 A065068 A066158 A066273

polyominoes; full list of sequences related to: (024) A066281 A066283 A066287 A066288 A066331 A066453 A066454 A066822 A067675 A067676 A067769 A068091

polyominoes; full list of sequences related to: (025) A068870 A070764 A070765 A070766 A070767 A070768 A071332 A071333 A071334 A071431 A073149 A073733

polyominoes; full list of sequences related to: (026) A075125 A075198 A075199 A075200 A075201 A075202 A075203 A075204 A075205 A075206 A075207 A075208

polyominoes; full list of sequences related to: (027) A075209 A075210 A075211 A075212 A075213 A075214 A075215 A075216 A075217 A075218 A075219 A075220

polyominoes; full list of sequences related to: (028) A075221 A075222 A075223 A075224 A075678 A075679 A079102 A079103 A079104 A079105 A079106 A079402

polyominoes; full list of sequences related to: (029) A079523 A079859 A079935 A081706 A082395 A082397 A082398 A084477 A084478 A084479 A084480 A084481

polyominoes; full list of sequences related to: (030) A085478 A085929 A087656 A088972 A089454 A089455 A089456 A089457 A089458 A090992 A090993 A090994

polyominoes; full list of sequences related to: (031) A090995 A091405 A092392 A092582 A093118 A093119 A093120 A093877 A093989 A093990 A093991 A093992

polyominoes; full list of sequences related to: (032) A094097 A094164 A094165 A094166 A094168 A094169 A094170 A094638 A094864 A095968 A096004 A096267

polyominoes; full list of sequences related to: (033) A097472 A099003 A099018 A099041 A099048 A099943 A099944 A099945 A100092 A100093 A100094 A100312

polyominoes; full list of sequences related to: (034) A100313 A100314 A100315 A100316 A100822 A101409 A102699 A103464 A103465 A103466 A103467 A103468

polyominoes; full list of sequences related to: (035) A103469 A103470 A103471 A103472 A103473 A104270 A104519 A105292 A105306 A105450 A105929 A108070

polyominoes; full list of sequences related to: (036) A108071 A108072 A108838 A111189 A112509 A112510 A112511 A113174 A113227 A118797 A119532 A119602

polyominoes; full list of sequences related to: (037) A119611 A120102 A120103 A120104 A120117 A120371 A120386 A120404 A120417 A120448 A120646 A120647

polyominoes; full list of sequences related to: (038) A120648 A121149 A121150 A121151 A121193 A121194 A121198 A121286 A121298 A121299 A121300 A121301

polyominoes; full list of sequences related to: (039) A121302 A121308 A121309 A121310 A121460 A121461 A121462 A121463 A121466 A121468 A121469 A121486

polyominoes; full list of sequences related to: (040) A121552 A121553 A121554 A121555 A121579 A121580 A121581 A121582 A121583 A121584 A121585 A121586

polyominoes; full list of sequences related to: (041) A121632 A121633 A121634 A121635 A121636 A121637 A121638 A121639 A121691 A121692 A121693 A121694

polyominoes; full list of sequences related to: (042) A121695 A121696 A121697 A121698 A121745 A121746 A121747 A121748 A121749 A121750 A121751 A121752

polyominoes; full list of sequences related to: (043) A121753 A121754 A121964 A121983 A122096 A122097 A122104 A122105 A122133 A122539 A122736 A122880

polyominoes; full list of sequences related to: (044) A123044 A123104 A123105 A123106 A123140 A123141 A123142 A123205 A123209 A123277 A123284 A123285

polyominoes; full list of sequences related to: (045) A123286 A123287 A123288 A123289 A123595 A123598 A123600 A123602 A123604 A123605 A123606 A123607

polyominoes; full list of sequences related to: (046) A123645 A123660 A123661 A123662 A125709 A125709 A125753 A125753 A125759 A125759 A125761 A125761

polyominoes; full list of sequences related to: (047) A126020 A126026 A126138 A126139 A126140 A126141 A126177 A126178 A126179 A126180 A126181 A126182

polyominoes; full list of sequences related to: (048) A126183 A126184 A126185 A126186 A126187 A126188 A126189 A126190 A126202 A126321 A126322 A126323

polyominoes; full list of sequences related to: (049) A126324 A126742 A126742 A126743 A126764 A126765 A127560 A127935 A128611 A129183 A129638 A129639

polyominoes; full list of sequences related to: (050) A130616 A130622 A130623 A130866 A130867 A131467 A131481 A131482 A131486 A131487 A131488 A131635

polyominoes; full list of sequences related to: (051) A132293 A134436 A134437 A135708 A135711 A135942 A136129 A137193 A140709 A140710 A142886 A144553

polyominoes; full list of sequences related to: (052) A144554 A144876 A147680 A151514 A151515 A151516 A151517 A151518 A151519 A151520 A151521 A151522

polyominoes; full list of sequences related to: (053) A151523 A151524 A151525 A151526 A151527 A151528 A151529 A151530 A151531 A151532 A151533 A151534

polyominoes; full list of sequences related to: (054) A151535 A151536 A151537 A151538 A151539 A151540 A151541 A153334 A153335 A153336 A153337 A153338

polyominoes; full list of sequences related to: (055) A153339 A153340 A153360 A153361 A153362 A153363 A153364 A153365 A153366 A153367 A153368 A153369

polyominoes; full list of sequences related to: (056) A153370 A153371 A153372 A153373 A155217 A155218 A155219 A155220 A155221 A155222 A155223 A155224

polyominoes; full list of sequences related to: (057) A155225 A155226 A155227 A155228 A155229 A155230 A155231 A155232 A155233 A155234 A155235 A155236

polyominoes; full list of sequences related to: (058) A155237 A155238 A155239 A155240 A155241 A155242 A155243 A155244 A155245 A155246 A155247 A155248

polyominoes; full list of sequences related to: (059) A155249 A155250 A155251 A155252 A155253 A155254 A155255 A155256 A155257 A155258 A155259 A155260

polyominoes; full list of sequences related to: (060) A155261 A155262 A155263 A155264 A155265 A155266 A155267 A155268 A155269 A155270 A155271 A155272

polyominoes; full list of sequences related to: (061) A155273 A155274 A155275 A155276 A155277 A155278 A155279 A155280 A155281 A155282 A155283 A155284

polyominoes; full list of sequences related to: (062) A155285 A155286 A155287 A155288 A155289 A155290 A155291 A155292 A155293 A155294 A155295 A155296

polyominoes; full list of sequences related to: (063) A155297 A155298 A155299 A155300 A155301 A155302 A155303 A155304 A155305 A155306 A155307 A155308

polyominoes; full list of sequences related to: (064) A155309 A155310 A155311 A155312 A155313 A155314 A155315 A155316 A155317 A155318 A155319 A155320

polyominoes; full list of sequences related to: (065) A155321 A155322 A155323 A155324 A155325 A155326 A155327 A155328 A155329 A155330 A155331 A155332

polyominoes; full list of sequences related to: (066) A155333 A155334 A155335 A155336 A155337 A155338 A155339 A155340 A155341 A155342 A155343 A155344

polyominoes; full list of sequences related to: (067) A155345 A155346 A155347 A155348 A155349 A155350 A155351 A155352 A155353 A155354 A155355 A155356

polyominoes; full list of sequences related to: (068) A155357 A155358 A155359 A155360 A155361 A155362 A155363 A155364 A155365 A155366 A155367 A155368

polyominoes; full list of sequences related to: (069) A155369 A155370 A155371 A155372 A155373 A155374 A155375 A155376 A155377 A155378 A155379 A155380

polyominoes; full list of sequences related to: (070) A155381 A155382 A155383 A155384 A155385 A155386 A155387 A155388 A155389 A155390 A155391 A155392

polyominoes; full list of sequences related to: (071) A155393 A155394 A155395 A155396 A155397 A155398 A155399 A155400 A155401 A155402 A155403 A155404

polyominoes; full list of sequences related to: (072) A155405 A155406 A155407 A155408 A155409 A155410 A155411 A155412 A155413 A155414 A155415 A155416

polyominoes; full list of sequences related to: (073) A155417 A155418 A155419 A155420 A155421 A155422 A155423 A155424 A155425 A155426 A155427 A155428

polyominoes; full list of sequences related to: (074) A155429 A155430 A155431 A155432 A155433 A155434 A155435 A155436 A155437 A155438 A155439 A155440

polyominoes; full list of sequences related to: (075) A155441 A155442 A155443 A155444 A155445 A155446 A155447 A155448 A156022 A156023 A156024 A156025

polyominoes; full list of sequences related to: (076) A157608 A159866 A159867

polyominoes; full list of sequences related to: (076) A182644 A182645 A182646

polytans: A006074

polytans: see also polyominoes

polytopal numbers: see polytopes, sequences related to polytopes, sequences related to :

polytopal numbers: see also squares, reversing digits of

polytopes, regular: A060296, A053016, A063924, A063925, A063926, A063927, A063722

polytopes, regular: A093478, A093479

polytopes: A000943* and A060296* (n-dimensional), A005841* (4-dimensional)

polytopes: see also polyhedra

Poonen-Rubinstein paper on sequences formed by drawing all diagonals in regular polygon, sequences related to :

Poonen-Rubinstein paper (1): A006533*, A006561*, A006600*, A007569*, A007678*

Poonen-Rubinstein paper (2): A062361 A067151 A067152 A067153 A067154 A067155 A067156 A067157 A067158 A067159 A067162 A067163

Poonen-Rubinstein paper (3): A067164 A067165 A067166 A067167 A067168 A067169 A091908 A092098 A092866 A092867 A108053

Poonen-Rubinstein paper: see also A000127

Poonen-Rubinstein paper: see also entry for chords in a circle

Popes: A113515

popular songs, see: songs, popular

porisms: A002348

Portuguese: A057696, A057697, A051385, A092752, A060248, A097897

Portuguese: see also Index entries for sequences related to number of letters in n

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Pos

posets , sequences related to :

posets : A000112* (unlabeled), A001035* (labeled), A003425, A065066 (triangle)

posets, antichains in: A006360-A006362, A056932-A056937, A056939-A056941

posets, chains in: A007047, A038719-A038721

posets, connected: A000608* (unlabeled), A001927* (labeled)

posets, forbidden: A058260

posets, graded: A001831 (labeled), A001833, A048194

posets, increasing: A006455*

posets, irreducible: A003431 (unlabeled), A046904-A046908

posets, N-free: A003430*, A007453, A007454

posets, reduced: A066302* (labeled), A066303, A066304* (unlabeled), A066305

posets, series-parallel: A058349, A058350, A053554* (labeled)

posets: see also Lattices

posets: see also linear extensions

posets: see also A001827, A001828, A001829, A001830, A003404, A003405, A006251, A007555, A007776

positive integers: A000027*

Post functions, sequences related to :

Post functions:: A002825, A002543, A002542, A002824, A002857, A002826, A001328, A001324, A001326, A001327, A001323, A001322, A001325, A001321

postage stamp problem, sequences related to :

postage stamp problem: (1) A084182 and A084193 (table of solutions)

postage stamp problem: (2) rows: A014616, A001208, A001209, A001210, A001211, A053346, A053348

postage stamp problem: (3) columns: A001212, A001213, A001214, A001215, A001216, A005342, A005343, A005344, A075060

postage stamp problem: (4) See also: A006638, A004129, A004131, A004132, A006639, A006640

Potts model, sequences related to :

Potts model: (1) A001393 A002891 A002926 A007270 A007271 A007276 A007277 A007278 A057374 A057375 A057376 A057377

Potts model: (2) A057378 A057379 A057380 A057381 A057382 A057383 A057384 A057385 A057386 A057387 A057388 A057389

Potts model: (3) A057390 A057391 A057392 A057393 A057394 A057395 A057396 A057397 A057398 A057399 A057400 A057401

Potts model: (4) A057402 A057403 A057404 A057405

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Pow

power set, chains in: A007047

power train: see powertrain

power-sum numbers: A007603*

powerful numbers , sequences related to :

powerful numbers: A001694*, A007532*, A023052*, A061862*, A134703*, A005934, A036966

powerful numbers: see also (1): A050240 A050241 A057521 A060859 A113839 A115645 A115651 A115676 A115686 A115687 A115689 A115691

powerful numbers: see also (2): A115693 A115695 A115697 A116064 A140172

powers , sequences related to :

powers (1):: A006899, A000079, A001357, A000244, A000290, A000302, A000351, A000400, A000420, A000578, A001018, A001019, A001020, A001021

powers (2):: A000468, A001022, A001023, A001024, A001025, A001026, A001027, A001029, A001682, A000584, A001014, A001015, A001016, A001017

powers of 10 written in base 8: A000468

powers of 10: A011557*

powers of 11: A001020

powers of 12: A001021

powers of 13: A001022

powers of 14: A001023

powers of 15: A001024

powers of 16: A001025

powers of 17: A001026

powers of 18: A001027

powers of 19: A001029

powers of 20: A009964

powers of 21: A009965

powers of 22: A009966

powers of 23: A009967

powers of 24: A009968

powers of 25: A009969

powers of 26: A009970

powers of 27: A009971

powers of 28: A009972

powers of 29: A009973

powers of 2: A000079*

powers of 2: see also (1): A000051 A000225 A000799 A000918 A001146 A001357 A001370 A002662 A004094 A004642 A004643 A004644

powers of 2: see also (2): A004645 A004646 A004647 A004651 A004653 A004654 A004655 A005126 A006127 A006899 A007689 A030622

powers of 2: see also (3): A030623 A030624 A034906

powers of 30: A009974

powers of 31: A009975

powers of 32: A009976

powers of 33: A009977

powers of 34: A009978

powers of 35: A009979

powers of 36: A009980

powers of 37: A009981

powers of 38: A009982

powers of 39: A009983

powers of 3: A000244*

powers of 3: see also (1): A002379, A002380, A001047 A000244 A004167 A004656 A004658 A004659 A004660 A004661 A004662

powers of 3: see also (2): A004663 A004665 A004666 A004667 A004668 A004669 A006899

powers of 40: A009984

powers of 41: A009985

powers of 42: A009986

powers of 43: A009987

powers of 44: A009988

powers of 45: A009989

powers of 46: A009990

powers of 47: A009991

powers of 48: A009992

powers of 4: A000302*

powers of 5: A000351*

powers of 6: A000400*

powers of 7: A000420*

powers of 8: A001018*

powers of 9: A001019*

powers of a prime but not prime: A025475

powers of e rounded up: A001671

powers of Pi rounded upwards: A001673

powers that be, A004143

powers, not the difference of two: A074981*, A074980, A069586, A023057, A066510, A075823

powers, perfect: A001597*, A007916

powers, the difference of two: A075788, A075789, A075790, A075791

powertrain function, sequences related to :

powertrain function: A133500*, A133506, A133507

powertrain function: fixed points: A135385

powertrain function: high point in trajectory of n: A135381; records: A135382

powertrain function: length of trajectory of n: A133501, A133502

powertrain function: numbers that converge to 2592: A135384

powertrain function: records for length of trajectory: A133503, A133508

powertrain function: records: A133504, A133505

powertrain function: see also persistence

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Pra

practical numbers: A005153*, A007620*

Prague clock sequence: A028354*

preferential arrangements: A000670*

preorders: A006326, A006327, A006328, A006329

previous prime , sequences related to :

previous prime and next prime etc. for terms of various sequences: [NP = next prime, PP = previous prime, NPMPP = next prime - previous prime, nMPP = n - previous prime, NPMn = next prime - n, MIN = min of nMPP and NPMn]

previous prime, next prime etc. .... .............................NP..........PP.......NPMPP....nMPP........NPMn ....MIN

previous prime, next prime etc. for A000027 (n)... A007918 A007917 A013633 A049711 A013632 A051702

previous prime, next prime etc. for A000079 (2^n). A014210 A014234 A058249 A013603 A013597 A059959

previous prime, next prime etc. for A000142 (n!).. A037151 A006990 A054588 A033933 A033932 A056752

previous prime, next prime etc. for A000290 (n^2). A007491 A053001 A058043 A056927 A053000 A060272

previous prime, next prime etc. for A001747 (2p).. A058786 A059788 A060271 A059789 A059787 A059790

previous prime, next prime etc. for A002110 (q(n)) A038710 A007014 A058044 A060270 A038711 A060269

previous prime, next prime etc. for A003418 (LCM) A060357 A060358 A060359 A060360 A060361 A060362

previous prime, next prime etc. for A005843 (2n).. A060264 A060308 A060267 A049653 A060266 A060268

previous prime: version 1: A007917, version 2: A151799

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Pri

prime divisor, greatest: A006530

prime factorizations of important sequences: see factorizations of important sequences

prime factors, sequences related to :

prime factors: at least (1) 1: A000027 2: A002808 3: A033942 4: A033987 5: A046304

prime factors: at least (2) 6: A046305 7: A046307 8: A046309 9: A046311 10: A046313

prime factors: at most 1: A000040 2: A037143 3: A037144 4: A166718 5: A166719

prime factors: exactly (1) 1: A000040 2: A001358 3: A014612 4: A014613 5: A014614

prime factors: exactly (2) 6: A046306 7: A046308 8: A046310 9: A046312 10: A046314

prime factors: exactly (3) 11: A069272 12: A069273 13: A069274 14: A069275 15: A069276

prime factors: exactly (4) 16: A069277 17: A069278 18: A069279 19: A069280 20: A069281

prime factors: number of A001222

prime factors: see also distinct prime factors

prime factors: table of: A078840

prime numbers of measurement: A002048*, A002049*

prime numbers: A000040*, A008578

prime plus twice a square: A046903

prime powers, sequences related to :

prime powers: base: A025473, exponent: A025474

prime powers: complement of: A024619

prime powers: excluding primes: base: A025476, exponent: A025477

prime powers: excluding primes: complement of: A085971

prime powers: excluding primes: gaps: A053707

prime powers: excluding primes: gaps: record: A167186, start: A167188, end: A167189

prime powers: excluding primes: list of: A025475, previous: A167185, next: A167184

prime powers: excluding primes: number of: A085501

prime powers: gaps: A057820

prime powers: gaps: record: A121492, start: A002540, end: A167236

prime powers: list of: A000961, previous: A031218, next: A000015

prime powers: number of: A065515

prime pyramid: A051237*, A036440

Prime quadruplets:: A007530

prime races, sequences related to :

prime races: A007350, A007351, A007352, A007353, A007354, A007355, A096447, A096448, A096449, A096450, A096451, A096452, A096453, A096454, A096455, A098044

prime races: see also races

prime signature, sequences related to :

prime signature: A025487*

prime signature: see also (1) A000688 A005361 A008480 A008683 A008966 A025488 A035206 A035341 A036035 A036041 A038538 A046660

prime signature: see also (2) A046951 A050320 A050322 A050323 A050324 A050325 A050326 A050327 A050328 A050329 A050330 A050331

prime signature: see also (3) A050332 A050333 A050334 A050335 A050336 A050337 A050338 A050339 A050340 A050341 A050345 A050346

prime signature: see also (4) A050347 A050348 A050349 A050350 A050354 A050355 A050356 A050357 A050358 A050359 A050360 A050361

prime signature: see also (5) A050362 A050363 A050364 A050370 A050371 A050372 A050373 A050374 A050375 A050377 A050378 A050379

prime signature: see also (6) A050380 A050382 A051282 A051466 A051707 A052213 A052214 A052304 A052305 A052306 A056099 A056153

prime signature: see also (7) A056808 A056823 A057335

prime signature: see also (8) primes, in arithmetic progressions

prime triplets: A007529

prime(2^n): A033844*, A018249, A051438, A051440, A051439

prime(k^n): A033844, A038833, A119772, A055680, A058192, A058239, A119773, A119774, A006988, A058244, A058245, A058246, A119775, A119776, A119777

prime(n) == +/-k (mod n): (1) A023143, A023144, A023145, A023146, A023147, A023148, A023149, A023150, A023151, A023152, A049204, A092044

prime(n) == +/-k (mod n): (2) A092045, A092046, A092047, A092048, A092049, A092050, A092051, A092052

prime, largest <=n: A007917

prime, largest dividing n: A006530

prime, smallest whose product of digits is (something): A088653 A088654 A089298 A089364 A089365 A089386 A089912

prime, weakly: A050249

PRIMEGAME: A007542, A007546, A007547

PrimePi(x), number of primes <= x: A000720*

primes , sequences related to :

primes : A000040*

primes gaps, see primes, gaps between

primes in arithmetic progressions, see primes, in arithmetic progressions

primes involving quasi-repdigits D(R)nE: (01) A049054,A088274,A088275,A102929,A102930,A102931,A102932,A102933,A102934,A102935,

primes involving quasi-repdigits D(R)nE: (02) A102936,A102937,A102938,A102939,A102940,A102941,A102942,A102943,A102944,A102945,

primes involving quasi-repdigits D(R)nE: (03) A102946,A102947,A081677,A101392,A102948,A102949,A102950,A102951,A102952,A102953,

primes involving quasi-repdigits D(R)nE: (04) A102954,A102955,A098930,A099006,A102956,A098959,A102957,A098960,A102958,A102959,

primes involving quasi-repdigits D(R)nE: (05) A102959,A102960,A102961,A102962,A102963,A102964,A056807,A100501,A101393,A102965,

primes involving quasi-repdigits D(R)nE: (06) A102966,A102967,A102968,A102969,A102970,A102971,A102972,A102973,A102974,A102975,

primes involving quasi-repdigits D(R)nE: (07) A102976,A102977,A102978,A102979,A102980,A101396,A101398,A056806,A101397,A101395,

primes involving quasi-repdigits D(R)nE: (08) A101394,A102981,A102982,A102983,A102984,A102985,A102986,A102987,A102988,A102989,

primes involving quasi-repdigits D(R)nE: (09) A102990,A102991,A102992,A102993,A102994,A099005,A099017,A102995,A102996,A102997,

primes involving quasi-repdigits D(R)nE: (10) A102998,A102999,A103000,A103001,A103002,A103003,A096254,A103004,A103005,A103006,

primes involving quasi-repdigits D(R)nE: (11) A103007,A103008,A103009,A103010,A103011,A103012,A103013,A103014,A103015,A103016,

primes involving quasi-repdigits D(R)nE: (12) A103017,A103018,A103019,A103020,A103021,A103022,A103023,A103024,A103025,A056805,

primes involving quasi-repdigits D(R)nE: (13) A103027,A103027,A103028,A103029,A103030,A097402,A103031,A103032,A103033,A103034,

primes involving quasi-repdigits D(R)nE: (14) A103035,A103036,A103037,A103038,A103039,A103040,A103041,A103042,A103043,A103044,

primes involving quasi-repdigits D(R)nE: (15) A103045,A103046,A103047,A103048,A103049,A056804,A097970,A097954,A103050,A103051,

primes involving quasi-repdigits D(R)nE: (16) A103052,A103053,A103054,A103055,A103056,A103057,A103058,A103059,A103060,A103061,

primes involving quasi-repdigits D(R)nE: (17) A103062,A103063,A103064,A103065,A103066,A103067,A103068,A099190,A103069,A103070,

primes involving quasi-repdigits D(R)nE: (18) A103071,A103072,A103073,A103074,A103075,A103076,A103077,A103078,A103079,A103080,

primes involving quasi-repdigits D(R)nE: (19) A103081,A103082,A103083,A103084,A103085,A103086,A103087,A103088,A103089,A103090,

primes involving quasi-repdigits D(R)nE: (20) A103091,A103092,A056797,A096774,A100473,A103093,A103094,A103095,A103096,A103097,

primes involving quasi-repdigits D(R)nE: (21) A103098,A103099,A103100,A103101,A103102,A103103,A103104,A103105,A103106,A103107,

primes involving quasi-repdigits D(R)nE: (22) A103108,A103109

primes involving repunits , sequences related to :

primes involving repunits, X*10*repunits+Y: (1): A004023, A056654, A056655, A056659, A056660, A056656, A056677, A056678, A055520, A056680,

primes involving repunits, X*10*repunits+Y: (2): A056681, A056661, A056682, A056683, A056684, A056685, A056686, A056687, A056658, A056657,

primes involving repunits, X*10*repunits+Y: (3): A056688, A056689, A056693, A056664, A056694, A056695, A056663, A056696, A056662

primes involving repunits, X*10^n+Y*repunits: (1): A004023, A056698, A089147, A002957, A056700, A056701, A056702, A056703, A056704,

primes involving repunits, X*10^n+Y*repunits: (2): A056705, A056706, A056707, A056708, A056712, A056713, A056714, A056715, A056716,

primes involving repunits, X*10^n+Y*repunits: (3): A056717, A056718, A056719, A056720, A056721, A056722, A056723, A056724, A056725,

primes involving repunits, X*10^n+Y*repunits: (4): A056726, A056727

primes involving repunits, X*repunits+-Y: (1): A004023, A097683, A097684, A097685, A084832, A096506, A099409, A099410, A055557, A099411,

primes involving repunits, X*repunits+-Y: (2): A099412, A096845, A099413, A099414, A099415, A099416, A099417, A099418, A098088, A096507,

primes involving repunits, X*repunits+-Y: (3): A099419, A099420, A098089, A099421, A099422, A096846, A096508, A095714, A089675

primes of the form binomial(k*n, n) +- 1, k=2..6: A066699, A066726, A125221, A125220, A125241, A125240, A125243, A125242, A125245, A125244

primes p such that x^k = 2 has a solution mod p, sequences related to :

primes p such that x^k = 2 has a solution mod p, (**) means the divergence occurs beyond the last entry shown in the OEIS.

primes p such that x^k = 2 has a solution mod p, k=02 to 09: A038873 (or A001132), A040028, A040098, A040159, A040992, A042966, A045315(**), A049596,

primes p such that x^k = 2 has a solution mod p, k=10 to 19: A049542, A049543, A049544, A049545, A049546, A049547, A045315, A049549, A049550, A049551

primes p such that x^k = 2 has a solution mod p, k=20 to 29: A049552, A049553, A049554, A049555, A049556, A049557, A049558, A049596(**), A049560, A049561

primes p such that x^k = 2 has a solution mod p, k=30 to 39: A049562, A000040(**), A049564, A049565, A049566, A049567, A049568, A049569, A049570, A049571

primes p such that x^k = 2 has a solution mod p, k=40 to 49: A049572, A049573, A049574, A058853, A049576, A049577, A049578, A000040(**), A049580, A042966(**)

primes p such that x^k = 2 has a solution mod p, k=50 to 59: A049582, A049583, A049584, A049585, A049550(**), A049587, A049588, A049589, A049590, A000040(**)

primes p such that x^k = 2 has a solution mod p, k=60 to 63: A049592, A000040(**), A049594, A049595

primes such that the sum of the predecessor and successor primes is divisible by k: A112681, A112794, A112731, A112789, A112795, A112796, A112804, A112847, A112859, A113155, A113156, A113157, A113158

primes that become a different prime under some mapping (1): A180533 A180535 A180537 A180560 A180541 A180543 A180552 A180581 A180561 A180530 A180526 A180527

primes that become a different prime under some mapping (2): A180545 A180525 A180528 A180531 A180559 A180529 A180532 A180538 A180534 A180517 A180540 A180542

primes that become a different prime under some mapping (3): A180518 A180548 A180547 A180519 A180546 A180549 A180550 A180553 A180520 A180555 A180557 A180521

primes that become a different prime under some mapping (4): A180558 A180522 A180523 A180524 A180536 A180539 A180544 A180554 A180551 A180556

primes with X as smallest positive primitive root: (1) A001122, A001123, A001124, A001125, A001126, A061323, A061324, A061325, A061326, A061327,

primes with X as smallest positive primitive root: (2) A061328, A061329, A061330, A061331, A061332, A061333, A061334, A061335, A061730, A061731,

primes with X as smallest positive primitive root: (3) A061732, A061733, A061734, A061735, A061736, A061737, A061738, A061739, A061740, A061741,

primes with X as smallest positive primitive root: (4) A114657, A114658, A114659, A114660, A114661, A114662, A114663, A114664, A114665, A114666,

primes with X as smallest positive primitive root: (5) A114667, A114668, A114669, A114670, A114671, A114672, A114673, A114674, A114675, A114676,

primes with X as smallest positive primitive root: (6) A114677, A114678, A114679, A114680, A114681, A114682, A114683, A114684, A114685, A114686

primes, <= n: A000720*

primes, absolute: A003459*

primes, additive: A046704

primes, almost: see almost primes

primes, approximations to: A050503, A050502, A050504

primes, arithmetic progressions of, see primes, in arithmetic progressions

primes, automorphic: A046883, A046884

primes, balanced: (index) A096693, A096705, A096706, A096707, A096708, A096697, A096709, A096695

primes, balanced: (order) A006562, A082077, A082078, A082079, A096697, A096698, A096699, A096700, A096701, A096702,

primes, balanced: (order) A096703, A096704, A081415, A082080, A126554, A096692, A127557, A096696, A160920, A090403

primes, balanced: (order) A126556, A126558, A126555, A126557, A127364, A126559, A051795, A054342, A090403, A055206

primes, balanced: A006562, A051795, A054342

primes, Bertrand: A006992*, A051501

primes, Bertrand: see also Bertrand's Postulate

Primes, by class number, A002148, A002142, A002146, A002147, A002149

primes, by Erdos-Selfridge class n+: (0) A005113, A126433, A101253

primes, by Erdos-Selfridge class n-: (0) A056637, A101231, A126805

primes, by Erdos-Selfrigde class n+: (1) A005105, A005106, A005107, A005108, A081633, A081634

primes, by Erdos-Selfrigde class n+: (2) A081635, A081636, A081637, A081638, A081639, A084071, A090468, A129474, A129475

primes, by Erdos-Selfrigde class n-: (1) A005109, A005110, A005111, A005112, A081424, A081425

primes, by Erdos-Selfrigde class n-: (2) A081426, A081427, A081428, A081429, A081430, A081640, A081641, A129248, A129249, A129250

Primes, by number of digits, A003617, A006879, A006880, A003618

primes, by order: (1) A007821, A049078, A049079, A049080, A049081, A058322, A058324, A058325, A058326, A058327, A058328, A093046

primes, by order: (2) A000040, A006450, A038580, A049090, A049203, A049202, A057849, A057850, A057851, A057847, A058332, A093047

Primes, by period length, A007615

primes, by primitive root , sequences related to :

primes, by primitive root: (01) A001122 A001123 A001124 A001125 A001126 A001913 A002230 A003147 A007348 A007349 A019334 A019335

primes, by primitive root: (02) A019336 A019337 A019338 A019339 A019340 A019341 A019342 A019343 A019344 A019345 A019346 A019347

primes, by primitive root: (03) A019348 A019349 A019350 A019351 A019352 A019353 A019354 A019355 A019356 A019357 A019358 A019359

primes, by primitive root: (04) A019360 A019361 A019362 A019363 A019364 A019365 A019366 A019367 A019368 A019369 A019370 A019371

primes, by primitive root: (05) A019372 A019373 A019374 A019375 A019376 A019377 A019378 A019379 A019380 A019381 A019382 A019383

primes, by primitive root: (06) A019384 A019385 A019386 A019387 A019388 A019389 A019390 A019391 A019392 A019393 A019394 A019395

primes, by primitive root: (07) A019396 A019397 A019398 A019399 A019400 A019401 A019402 A019403 A019404 A019405 A019406 A019407

primes, by primitive root: (08) A019408 A019409 A019410 A019411 A019412 A019413 A019414 A019415 A019416 A019417 A019418 A019419

primes, by primitive root: (09) A019420 A019421 A029932 A047933 A047934 A047935 A047936 A048975 A048976 A066529 A023048

primes, by primitive root: (09) A105874-A105914

primes, by primitive root: see also Artin's constant

Primes, chains of, A005603, A005602

primes, characteristic function of: A010051

Primes, compressed, A002036

primes, concatenation of: A033308

Primes, consecutive, A006549, A007700, A007513, A007529, A007530, A006489

primes, cuban: A002407, A002648, A007645

primes, Cullen: A005849*, A050920*

primes, deceptive: A000864

Primes, decompositions into, A002375, A002126, A001031, A002372, A007414

primes, differences between: A001223*, A007921*, A030173*, A037201

primes, differences between: see also primes, gaps between

primes, dihedral calculator: A038136

primes, dihedral palindromic: A048662

primes, dividing n: A001221*, A001222*, A006530*, A046660

primes, doubled: A001747, A005602, A005603

primes, duodecimal: A006687

primes, Euclid-Pocklington: A053341*

primes, Euclidean: A007996

primes, even: A001747

primes, factorial: see factorial primes

primes, Fermat, generalized, see primes, generalized Fermat

primes, Fermat, generalized: A056993* A005574 A000068 A006314 A006313 A006315 A006316 A056994 A056995 A057465 A057002 A088361 A088362

primes, Fermat: A019434*, A050922

primes, Fermat: see also A093625, A138083, A171381

primes, Fibonacci numbers: A001605*, A005478*

primes, final digits of: A007652

primes, fortunate, A005235

primes, from Euclid's proof: A000945*, A000946*

primes, gaps between , sequences related to :

primes, gaps between, A001223*, A007921*, A030173*, A037201, A023200

primes, gaps between, A001359, A006512, A077800, A001097, A049591, A124582-A124596

primes, gaps between, A031924 A031925 A031926 A031927 A031928 A031929 A031930 A031931 A031932 A031933 A031934 A031935 A031936 A031937 A031938 A031939

primes, gaps between, LCM of: A080374 A080375 A080376 A083273 A083552 A083551

primes, gaps between, records for: A000101* (upper end), A002386* (lower end), A005250* (gaps)

primes, gaps between, see also: A005669, A002540, A000230, A000232, A001549, A001632

primes, gaps between, see also: primes, differences between

primes, generalized Fermat: A006686, A078902, A090874, A100266, A100267, A123646

primes, generated by polynomials: see primes, produced by polynomials

primes, Germain: see primes, Sophie Germain

primes, good: A046869, A028388

primes, half-quartan: A002646

primes, happy: A035497

primes, Higgs: A007459

primes, home: A037274* (base 10), A048986* and A064795 (base 2)

primes, home, see also A048985, A064841, A195264

primes, Honaker: A033548

primes, iccanobiF: A036797

primes, in arithmetic progressions, sequences related to :

primes, in arithmetic progressions: (01) Consider n-term arithmetic progressions (APs) of primes, i, i+d, i+2d, ..., i+(n-1)d. We can minimize (a) the first term i, (b) the common difference d, or (c) the last term, l=i+(n-1)d. This gives rise to 12 sequences since for each problem we can list the values of i, d, l, and we can list the progressions as the rows of a triangle:

primes, in arithmetic progressions: (02) problem (a) i: A007918* (assuming k-tuple conjecture), d: A061558, l: A120302, triangle: A130791

primes, in arithmetic progressions: (03) problem (b) i: A033189, d: A033188*, l: A113872, triangle: A133276

primes, in arithmetic progressions: (04) problem (c) i: A113827, d: A093364, l: A005115*, triangle: A133277

primes, in arithmetic progressions: (05) If we take the initial value to be the n-th prime (A000040) the the sequences are: d: A088430, l: A113834, triangle: A133278

primes, in arithmetic progressions: (06) One may also ask for n consecutive primes in arithmetic progression: this gives A006560

primes, in arithmetic progressions: (07) One may also consider n consecutive numbers in arithmetic progression having the same prime signature, and ask the same questions. This gives the following sequences:

primes, in arithmetic progressions: (08) problem (a) i: A133279, d: A113461, l: A127781, triangle: A113460

primes, in arithmetic progressions: (09) problem (b) i: A034173, d: the all-ones sequence A000012, l: A034174, triangle: A083785

primes, in arithmetic progressions: (10) problem (c) i: A087308, d: A087310, l: A133280, triangle: A086786

primes, in arithmetic progressions: (11) One may also ask for n consecutive numbers with the same prime signature: this gives sequences A034173, A034174, A083785 again. See also A087307

primes, in arithmetic progressions: (12) See also A031217 A033168 A033290 A033446 A033447 A033448 A033449 A033450

primes, in arithmetic progressions: (13) See also A033451 A035050 A035089 A035091 A035092 A035093 A035094 A035095 A035096 A047980 A047981 A047982

primes, in arithmetic progressions: (14) See also A052239 A052242 A052243 A053647 A054203 A057324 A057325 A057326 A057327 A057328 A057329 A057330

primes, in arithmetic progressions: (15) See also A057331 A057778 A057874 A058252 A058323 A058362 A059044

primes, in arithmetic progressions: (16) Higher powers: A001912, A002496, A005574, A115104, A199307, A199364, A199365, A199366, A199367, A199368, A199369

primes, in decimal expansion of Pi: A005042

Primes, in intervals, A007491

Primes, in number fields, A003631, A003625, A003628, A003630, A003632, A003626

Primes, in residue classes, A003627, A002313, A003629, A002145, A007520, A002515, A007528, A002144, A007521, A002476, A001132, A007522, A007519

Primes, in sequences, A003032, A003033, A002072

Primes, in ternary, A001363

primes, in various ranges , sequences related to :

primes, in various ranges: (1) A003604 A006879 A006880 A007053 A007508 A033843 A035533 A036351 A036386 A039506 A039507

primes, in various ranges: (2) A040014 A049035 A049040 A050251 A050258 A050986 A050987 A052130 A055206 A055552 A055683 A055728

primes, in various ranges: (3) A055729 A055730 A055731 A055732 A055737 A055738 A057573 A057978 A058191 A058247 A058248 A060969

primes, in various ranges: (4) A060970 A060971 A063501 A064151 A066265 A066873 A071973

primes, in various ranges: (5) A091644 A091645 A091646 A091647 A091705 A091706 A091707 A091708 A091709 A091710

primes, in various ranges: (6) A091634 A091635 A091636 A091637 A091638 A091639 A091640 A091641 A091642 A091643

Primes, inert, A003631, A003625, A003628, A003630, A003632, A003626

primes, irregular: A000928*, A061576*

Primes, isolated, A007510

primes, isolated: A039818

Primes, largest, A006530, A006990, A007014, A002374, A003618

primes, left-truncatable: see truncatable primes

primes, lonely: A023186, A023187, A023188

primes, long period: A006883*

primes, Lucas numbers: A001606*, A005479*

primes, Lucasian: A002515*

primes, Mersenne: A000668* (primes of form 2^p-1), A000043* (p values)

primes, Mills's: A051254*

primes, minus a constant: A000040*, A014689, A014692, A040976

primes, multiplicative and additive: A046713

primes, multiplicative: A046703

primes, next: A007918

primes, number of less than k^n: A007053, A055729, A086680, A055730, A055731, A055732, A086681, A086682, A006880, A058247, A058248, A058191

primes, number of less than n*10^k: (1) A000720*, A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819,

primes, number of less than n*10^k: (2) A038820, A038821, A038822, A080123, A080124, A080125, A080126, A080127, A080128, A080129, A116356

primes, octavan: A006686

primes, of a particular form, number that are less than or equal to 10^n: A091115 A091116 A091117 A091119-A091129 A091099 A091098 A006880 A007508

primes, of form k*n! +- 1: (1) A002981, A002982, A051915, A076133, A076679, A076134, A076680, A099350, A076681, A099351,

primes, of form k*n! +- 1: (2) A076682, A180627, A076683, A180628, A180625, A180629, A180626, A180630, A126896, A180631

primes, of form n! +- 1: A002981, A002982

primes, of form x^2 + kxy + y^2: (1) A007519 A007645 A033212 A033215 A038872 A068228 A107008 A107008 A107145 A107152 A139492 A139493

primes, of form x^2 + kxy + y^2: (2) A139493 A139494 A139495 A139496 A139497 A139498 A139499 A139500 A139501 A139502 A139503 A139504

primes, of form x^2 + kxy + y^2: (3) A139505 A139506 A139507 A139508 A139509 A139510 A139511 A139512

primes, of form x^2+27y^2: A014752, A040028

primes, of form x^2+y^2: A002313*, A002331, A002330, A002144

primes, order of: A049076, A007097

primes, palindromic: A002385*, A007500, A007616

primes, palindromic: see also (1) A016041 A029971 A029972 A029973 A029974 A029975 A029976 A029977 A029978 A029979 A029980 A029981

primes, palindromic: see also (2) A029982 A029732 A046942 A046941 A050236 A050239 A039954 A118064 A119351 A016115 A050251 A050683

primes, palindromic, smoothly undulating, sequences related to :

primes, palindromic, smoothly undulating, A062209 A062210 A062211 A062212 A062213 A062214 A062215 A062216 A062217 A062218 A062219 A062220

primes, palindromic, smoothly undulating, A062221 A062222 A062223 A062224 A062225 A062226 A062227 A062228 A062229 A062230 A062231 A062232

primes, palindromic, smoothly undulating, A077799 A059758 A032758

primes, period of reciprocal of, see 1/p

primes, Pierpont: A005109

Primes, primitive roots of, A001918, A002233, A002199, A002231, A001122, A007348, A003147, A001913, A001123, A007349, A001124, A001125, A001126

primes, produced by polynomials, etc.: A050268, A121887, A139414, A033189

Primes, products of, A007467, A006881, A006094, A007304

primes, products of: A000040 (1), A001358 (2), A014612 (3), A014613 (4)

primes, pseudo: see pseudoprimes

primes, quadratic form, discriminant -104: A107132, A033218

primes, quadratic form, discriminant -108: A014752

primes, quadratic form, discriminant -112: A107133, A107134

primes, quadratic form, discriminant -116: A033219

primes, quadratic form, discriminant -11: A056874, A106857

primes, quadratic form, discriminant -120: A107135, A107136, A107137, A033220

primes, quadratic form, discriminant -124: A033221

primes, quadratic form, discriminant -128: A105389

primes, quadratic form, discriminant -12: A002476

primes, quadratic form, discriminant -132: A107138, A033222

primes, quadratic form, discriminant -136: A107139, A033223

primes, quadratic form, discriminant -140: A107140, A033224

primes, quadratic form, discriminant -144: A107141, A107142

primes, quadratic form, discriminant -148: A033225

primes, quadratic form, discriminant -152: A107143, A033226

primes, quadratic form, discriminant -156: A033227

primes, quadratic form, discriminant -15: A033212, A106858, A106859, A106860, A106861

primes, quadratic form, discriminant -160: A107144, A107145

primes, quadratic form, discriminant -164: A033228

primes, quadratic form, discriminant -168: A107146, A107147, A107148, A033229

primes, quadratic form, discriminant -16: A002144, A002313

primes, quadratic form, discriminant -172: A033230

primes, quadratic form, discriminant -176: A107149, A107150

primes, quadratic form, discriminant -180: A107151, A107152

primes, quadratic form, discriminant -184: A107153, A033231

primes, quadratic form, discriminant -188: A033232

primes, quadratic form, discriminant -192: A107154

primes, quadratic form, discriminant -196: A107155

primes, quadratic form, discriminant -19: A106862, A106863

primes, quadratic form, discriminant -200: A107156, A107157

primes, quadratic form, discriminant -204: A107158, A033233

primes, quadratic form, discriminant -208: A107159, A107160

primes, quadratic form, discriminant -20: A033205, A106864, A106865

primes, quadratic form, discriminant -212: A033234

primes, quadratic form, discriminant -216: A107161, A107162

primes, quadratic form, discriminant -220: A033235

primes, quadratic form, discriminant -224: A107163, A107164

primes, quadratic form, discriminant -228: A107165, A033236

primes, quadratic form, discriminant -232: A107166, A033237

primes, quadratic form, discriminant -236: A033238

primes, quadratic form, discriminant -23: A106866, A106867, A106868, A106869

primes, quadratic form, discriminant -240: A107167, A107168, A107169

primes, quadratic form, discriminant -244: A033239

primes, quadratic form, discriminant -248: A107170, A033240

primes, quadratic form, discriminant -24: A033199, A084865

primes, quadratic form, discriminant -256: A014754

primes, quadratic form, discriminant -260: A107171, A033241

primes, quadratic form, discriminant -264: A107172, A107173, A107174, A033242

primes, quadratic form, discriminant -268: A033243

primes, quadratic form, discriminant -272: A107175, A107176

primes, quadratic form, discriminant -276: A107177, A033244

primes, quadratic form, discriminant -27: A002476, A106870

primes, quadratic form, discriminant -280: A107178, A107179, A107180, A033245

primes, quadratic form, discriminant -284: A033246

primes, quadratic form, discriminant -288: A107181

primes, quadratic form, discriminant -28: A033207

primes, quadratic form, discriminant -292: A033247

primes, quadratic form, discriminant -296: A107182, A033248

primes, quadratic form, discriminant -300: A107183, A107184

primes, quadratic form, discriminant -304: A107185, A107186

primes, quadratic form, discriminant -308: A107187, A033249

primes, quadratic form, discriminant -312: A107188, A107189, A107190, A033250

primes, quadratic form, discriminant -316: A033251

primes, quadratic form, discriminant -31: A033221, A106871, A106872, A106873, A106874

primes, quadratic form, discriminant -320: A107191, A107192

primes, quadratic form, discriminant -324: A107193

primes, quadratic form, discriminant -328: A107194, A033252

primes, quadratic form, discriminant -32: A007519, A007520, A106875, A106876

primes, quadratic form, discriminant -332: A033253

primes, quadratic form, discriminant -336: A107195, A107196, A107197, A107198

primes, quadratic form, discriminant -340: A107199, A033254

primes, quadratic form, discriminant -344: A107200, A033255

primes, quadratic form, discriminant -348: A033256

primes, quadratic form, discriminant -352: A107201, A107202

primes, quadratic form, discriminant -356: A033257

primes, quadratic form, discriminant -35: A106877, A106878, A106879, A106880, A106881

primes, quadratic form, discriminant -360: A107203, A107204, A107205, A107206

primes, quadratic form, discriminant -364: A107207, A033258

primes, quadratic form, discriminant -368: A107208, A107209

primes, quadratic form, discriminant -36: A040117, A068228, A106882

primes, quadratic form, discriminant -372: A107210, A033202

primes, quadratic form, discriminant -376: A107211, A033204

primes, quadratic form, discriminant -380: A033206

primes, quadratic form, discriminant -384: A107212, A107213

primes, quadratic form, discriminant -388: A033208

primes, quadratic form, discriminant -392: A107214, A107215

primes, quadratic form, discriminant -396: A107216, A107217

primes, quadratic form, discriminant -39: A033227, A106883, A106884, A106885, A106886, A106887, A106888

primes, quadratic form, discriminant -3: A007645

primes, quadratic form, discriminant -400: A107218, A107219

primes, quadratic form, discriminant -40: A033201, A106889

primes, quadratic form, discriminant -43: A106890, A106891

primes, quadratic form, discriminant -44: A033209, A106282, A106892, A106893

primes, quadratic form, discriminant -47: A033232, A106894, A106895, A106896, A106897, A106898, A106899, A106900

primes, quadratic form, discriminant -48: A068229

primes, quadratic form, discriminant -4: A002313

primes, quadratic form, discriminant -51: A106901, A106902, A106903, A106904

primes, quadratic form, discriminant -52: A033210, A106905, A106906

primes, quadratic form, discriminant -55: A033235, A106907, A106908, A106909, A106910, A106911, A106912, A106913

primes, quadratic form, discriminant -56: A033211, A106914, A106915, A106916, A106917

primes, quadratic form, discriminant -59: A106918, A106919, A106920, A106921, A106922

primes, quadratic form, discriminant -63: A106923, A106924, A106925, A106926, A106927, A106928, A106929, A106930

primes, quadratic form, discriminant -64: A007521, A106931

primes, quadratic form, discriminant -67: A106932, A106933

primes, quadratic form, discriminant -68: A033213, A106934, A106935, A106936, A106937, A106938

primes, quadratic form, discriminant -71: A033246, A106939, A106940, A106941, A106942, A106943, A106944, A106945, A106946, A106947, A106948

primes, quadratic form, discriminant -72: A106949, A106950

primes, quadratic form, discriminant -75: A033212, A106951, A106952

primes, quadratic form, discriminant -76: A033214, A106953, A106954, A106955

primes, quadratic form, discriminant -79: A033251, A106956, A106957, A106958, A106959, A106960, A106961, A106962

primes, quadratic form, discriminant -7: A045373, A106856

primes, quadratic form, discriminant -80: A047650, A106963, A106964, A106965

primes, quadratic form, discriminant -83: A106966, A106967, A106968, A106969, A106970

primes, quadratic form, discriminant -84: A033215, A102271, A102273, A106971, A106972, A106973, A106974

primes, quadratic form, discriminant -87: A033256, A106975, A106976, A106977, A106978, A106979, A106980, A106981, A106982, A106983

primes, quadratic form, discriminant -88: A033216, A106984

primes, quadratic form, discriminant -8: A033203

primes, quadratic form, discriminant -91: A106985, A106986, A106987, A106988, A106989

primes, quadratic form, discriminant -92: A033217

primes, quadratic form, discriminant -95: A033206, A106990, A106991, A106992, A106993, A106994, A106995, A106996, A106997, A106998, A106999, A107000, A107001

primes, quadratic form, discriminant -96: A107002, A107003, A107004, A107005, A107006, A107007, A107008

primes, quadratic form, discriminant -99: A107009, A107010, A107011, A107012, A107013

primes, quadratic form, discriminant 1020: A139512

primes, quadratic form, discriminant 117: A139494

primes, quadratic form, discriminant 140: A139495

primes, quadratic form, discriminant 165: A139496

primes, quadratic form, discriminant 21: A139492

primes, quadratic form, discriminant 221: A139497

primes, quadratic form, discriminant 285: A139498

primes, quadratic form, discriminant 357: A139499

primes, quadratic form, discriminant 396: A139500

primes, quadratic form, discriminant 437: A139501

primes, quadratic form, discriminant 480: A139502

primes, quadratic form, discriminant 525: A139503

primes, quadratic form, discriminant 572: A139504

primes, quadratic form, discriminant 621: A139505

primes, quadratic form, discriminant 672: A139506

primes, quadratic form, discriminant 725: A139507

primes, quadratic form, discriminant 77: A139493

primes, quadratic form, discriminant 780: A139508

primes, quadratic form, discriminant 837: A139509

primes, quadratic form, discriminant 896: A139510

primes, quadratic form, discriminant 957: A139511

Primes, quadratic partitions of, A002973, A002972

Primes, quadratic residues of, A002223, A002224, A002225, A002226, A002228, A002227

primes, quartan: A002645

primes, quintan: A002649, A002650

primes, reciprocals of, periods: see 1/p

primes, regular: A007703*

Primes, represented by quadratic forms, A002496, A007645, A002383, A007490, A002327, A005473, A005471, A007635, A007639, A007637, A007641, A005846

primes, repunit: A004022*, A004023*

primes, right-truncatable: see truncatable primes

primes, safe: A005385*, A051900, A051901, A051902

primes, sextan: A002647

primes, short period: A006559*

Primes, single, A007510

primes, Sophie Germain: A005384

Primes, special sequences of, A001259, A001275

Primes, square roots of, A000006

primes, Stern: A042978

primes, strobogrammatic: A007597, A018847

primes, strong: A051634

primes, sum of the first k^n primes, k=2,3,5,6,7,10: A099825, A099826, A113633, A113634, A113635, A099824

Primes, sums of digits of, A007605

Primes, sums of, A007610, A001414, A007504, A007468, A002373, A001043, A001172

Primes, supersingular, A006962

primes, that divide sum of all primes <= p: A007506, A024011, A028581, A028582

Primes, to odd powers only, A002035

primes, transformed by cellular automata: A093510 A093511 A093512 A093513 A093514 A093515 A093516 A093517

primes, transforms of, A007442, A007444, A007447, A007441, A007445, A007296, A007446

primes, truncatable: see truncatable primes

primes, truncated: see truncatable primes

primes, twin primes conjecture: see also A093483

primes, twin: A001359*, A014574*, A006512*, A001097*, A077800

primes, twin: see also twin primes constant

primes, twin: see also A005597, A007508, A033843, A036061, A036062, A036063

primes, undulating: A039944

primes, various subsets in range 2^n,2^(n+1) , sequences related to :

primes, various subsets in range 2^n,2^(n+1), (numbers in parentheses give the primes whose occurrences are being counted)

primes, various subsets in range 2^n,2^(n+1): (1) A036378* (A000040), A095005 (A027697), A095006 (A027699), A095007 (A002144)

primes, various subsets in range 2^n,2^(n+1): (2) A095008 (A002145), A095009 (A007519), A095010 (A007520), A095011 (A007521), A095012 (A007522), A095013 (A001132), A095014 (A003629)

primes, various subsets in range 2^n,2^(n+1): (3) A095015 (A002476), A095016 (A007528), A095017 (A001359), A095018 (A066196), A095019 (A095071), A095020 (A095070), A095021 (A030430)

primes, various subsets in range 2^n,2^(n+1): (4) A095022 (A030432), A095023 (A030431), A095024 (A030433), A095052 (A095072), A095053 (A095073), A095054 (A095074), A095055 (A095075)

primes, various subsets in range 2^n,2^(n+1): (5) A095056 (A081091), A095057 (A095077), A095058 (A095078), A095059 (A095079), A095060 (A095080), A095061 (A095081), A095062 (A095082)

primes, various subsets in range 2^n,2^(n+1): (6) A095063 (A095083), A095064 (A095084), A095065 (A095085), A095066 (A095086), A095067 (A095087), A095068 (A095088), A095069 (A095089)

primes, various subsets in range 2^n,2^(n+1): (7) A095092 (A095102), A095093 (A095103), A095094 (A080114), A095095 (A080115)

primes, weak: A051635

primes, weakly prime numbers: A050249

primes, which are average of their neighbors: A006562

primes, whose reversal is a square, A007488

primes, Wilson: A007540*

Primes, with consecutive digits, A006510, A006055

primes, with embedded primes (permutation): A039993, A080603, A080608.

primes, with embedded primes (substring) (1): A033274, A034844, A039992, A039994, A039996, A039998, A045719, A079397, A092621, A092622,

primes, with embedded primes (substring) (2): A092623, A092628, A109066, A134596, A137812, A152313, A152426, A152427, A155024, A168169,

primes, with embedded primes (substring) (3): A178596, A178597, A179336, A179909, A179910, A179911, A179912, A179913, A179914, A179915,

primes, with embedded primes (substring) (4): A179916, A179917, A179918, A179919, A179920, A179922, A179924*

primes, with first digit 1 (or 2, 3, etc.): A045707, A045708, A045709, etc.

Primes, with large least nonresidues, A002225, A002226, A002228, A002227

Primes, with prime subscripts, A006450

primes, Woodall: A002234*, A050918*

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, sequences related to :

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (01): A000043 A001770 A001771 A001772 A001773 A001774 A001775 A002235 A002236 A002237 A002238 A002240

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (02): A002242 A002253 A002254 A002256 A002258 A002259 A002261 A002269 A002274 A032353 A032356 A032359

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (03): A032360 A032361 A032362 A032363 A032364 A032365 A032366 A032367 A032368 A032370 A032371 A032372

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (04): A032373 A032374 A032375 A032376 A032377 A032379 A032380 A032381 A032382 A032383 A032384 A032385

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (05): A032386 A032387 A032388 A032389 A032390 A032391 A032392 A032393 A032394 A032395 A032396 A032397

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (06): A032398 A032399 A032400 A032401 A032402 A032403 A032404 A032405 A032406 A032407 A032408 A032409

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (07): A032410 A032411 A032412 A032413 A032414 A032415 A032416 A032417 A032418 A032419 A032420 A032421

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (08): A032422 A032423 A032424 A032425 A032453 A032454 A032455 A032456 A032457 A032458 A032459 A032460

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (09): A032461 A032462 A032464 A032465 A032466 A032467 A032468 A032469 A032470 A032471 A032472 A032473

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (10): A032474 A032475 A032476 A032477 A032478 A032479 A032480 A032481 A032482 A032483 A032484 A032485

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (11): A032486 A032487 A032488 A032489 A032490 A032491 A032492 A032493 A032494 A032495 A032496 A032497

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (12): A032498 A032499 A032500 A032501 A032502 A032503 A032504 A032507 A046758 A050537 A050538 A050539

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (13): A050540 A050541 A050543 A050544 A050545 A050546 A050547 A050549 A050550 A050551 A050552 A050553

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (14): A050554 A050555 A050556 A050557 A050558 A050559 A050560 A050561 A050562 A050563 A050564 A050565

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (15): A050566 A050567 A050568 A050569 A050570 A050571 A050572 A050573 A050574 A050575 A050576 A050577

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (16): A050578 A050579 A050580 A050581 A050582 A050583 A050584 A050585 A050586 A050587 A050588 A050589

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (17): A050590 A050591 A050592 A050593 A050594 A050595 A050596 A050597 A050598 A050599 A050616 A050617

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (18): A050618 A050619 A050830 A050831 A050832 A050833 A050834 A050835 A050836 A050837 A050838 A050839

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (19): A050840 A050841 A050842 A050843 A050844 A050845 A050846 A050847 A050848 A050849 A050850 A050851

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (20): A050852 A050853 A050854 A050855 A050856 A050857 A050858 A050859 A050860 A050861 A050862 A050863

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (21): A050864 A050865 A050866 A050867 A050868 A050869 A050877 A050878 A050879 A050880 A050881 A050882

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (22): A050883 A050884 A050885 A050886 A050887 A050888 A050889 A050890 A050891 A050892 A050893 A050894

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (23): A050895 A050896 A050897 A050898 A050899 A050900 A050901 A050902 A050903 A050904 A050905 A050906

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (24): A050907 A050908 A053345 A053346 A053348 A053349 A053350 A053351 A053352 A053353 A053354 A053355

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (25): A053356 A053357 A053358 A053359 A053360 A053361 A053362 A053363 A053364 A053365 A053366

primes: values of n such that k*2^n-1 (or k*2^n+1) is prime, for k=1,3,5,7,... (26): A007505 A050522 A050523 A050524 A050525 A050526 A050527 A050528 A002255 A050413

Primes:: A005361, A002200, A002038, A006093, A007445, A007296, A001259, A006450, A001275

primeth recurrence: A007097*

primitive (1):: A000020, A003050, A002233, A002199, A000019, A005992, A001578, A006246, A006245, A002589

primitive (2):: A001122, A007348, A006248, A006991, A006039, A006036, A001913, A001123, A007627, A006576, A007349, A001124, A001125, A002975, A001126

Primitive factors, A002185, A007138, A002184

primitive polynomials: see also trinomials over GF(2)

primitive roots, sequences related to :

primitive roots, primes by: see primes by primitive root

primitive roots: A060749*, A001918*, A002199, A002229, A002230, A002231, A029932, A071894

primorial numbers, sequences related to :

primorial numbers: A002110*, A034386*

primorial numbers: see also A056113, A056129, A006862, A057588, A129912

primorial primes: A005234*, A014545*, A018239*, A006794*, A057704*, A057705*

principal character: A005368

prism numbers: A005914, A005915, A005919, A005920

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Pro

probability difference equation: A001949

probability orderings: A005806

problems to work on, see sequences that need extending

problimes: A003066, A003067, A003068

product of digits of n: A007954

product of digits of primes, see: prime, smallest whose product of digits is (something)

product of earlier terms, not, see: smallest number not a product of earlier terms

product_{k >= 1} (1-x^k)^m , sequences from :

product_{k >= 1} (1-x^k)^m (2): m=11..20: A010819 A000735 A010820 A010821 A010822 A000739 A010823 A010824 A010825 A010826

product_{k >= 1} (1-x^k)^m (3): m=21..30: A010827 A010828 A010829 A000594 (the Ramanujan tau function), A010830 A010831 A010832 A010833 A010834 A010835

product_{k >= 1} (1-x^k)^m (4): A010836 (m=31), A010837 (m=32), A010840 (m=40), A010838 (m=44), A010839 (m=48), A010841 (m=64)

product_{k >= 1} (1-x^k)^m (5): m=-1..-10: A000041 (partition numbers), A000712 A000716 A023003 A023004 A023005 A023006 A023007 A023008 A023009

product_{k >= 1} (1-x^k)^m (6): m=-11..-20: A023010 A005758 A023011 A023012 A023013 A023014 A023015 A023016 A023017 A023018

product_{k >= 1} (1-x^k)^m (7): A023019 (m=-21), A023020 (m=-22), A023021 (m=-23), A006922 (m=-24), A082556 (m=-30), A082557 (m=-32), A082558 (m=-48), A082559 (m=-64)

Production matrices

Production matrices are mentioned in many entries in the OEIS. For definition see the article by Emeric Deutsch, Luca Ferrari and Simone Rinaldi, Production matrices and Riordan arrays

profiles: A118131

projective planes of order n: A001231*

projective planes, maps on: A007137

projective planes, permanent of: A000794

projective planes: see also rooted trees, projective plane

projective planes: see also trees, projective plane

promic numbers: see pronic numbers

pronic numbers: A002378*

Proth numbers: A016014*

proton mass: A003677*

proton-to-electron mass ratio: A005601*

Prufer codes for trees: A056096, A056098

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ps

pseudo Q-numbers: A038135

pseudo-bricks: A006291, A006293, A006293

pseudo-Galois numbers: A028666 A028668 A028670 A028671 A028672 A028674 A028676 A028677 A028678 A028680 A028682 A028683 A028684 A028686 A028690

pseudo-lines: A006247, A006248

pseudo-powers to base 3: A016057, A016058

pseudo-primes, see pseudoprimes

pseudo-random numbers: sequences related to :

pseudo-random numbers: (1) A061364 A096554 A096550 A096551 A096552 A096553 A096554 A096555 A096556 A096557 A096558 A096559

pseudo-random numbers: (2) A096560 A096561 A084275 A084276 A084277

pseudo-Smarandache numbers: A011772

pseudo-squares: A002189*, A045535

pseudo-wild numbers: see wild numbers

pseudoperfect numbers: A005835*, A006036, A035480

pseudoprimes , sequences related to :

pseudoprimes (01): A001262 A001567 A005845 A005935 A005936 A005937 A005938 A005939 A006935 A006970 A007011 A007535

pseudoprimes (02): A013998 A018187 A020136 A020137 A020138 A020139 A020140 A020141 A020142 A020143 A020144 A020145

pseudoprimes (03): A020146 A020147 A020148 A020149 A020150 A020151 A020152 A020153 A020154 A020155 A020156 A020157

pseudoprimes (04): A020158 A020159 A020160 A020161 A020162 A020163 A020164 A020165 A020166 A020167 A020168 A020169

pseudoprimes (05): A020170 A020171 A020172 A020173 A020174 A020175 A020176 A020177 A020178 A020179 A020180 A020181

pseudoprimes (06): A020182 A020183 A020184 A020185 A020186 A020187 A020188 A020189 A020190 A020191 A020192 A020193

pseudoprimes (07): A020194 A020195 A020196 A020197 A020198 A020199 A020200 A020201 A020202 A020203 A020204 A020205

pseudoprimes (08): A020206 A020207 A020208 A020209 A020210 A020211 A020212 A020213 A020214 A020215 A020216 A020217

pseudoprimes (09): A020218 A020219 A020220 A020221 A020222 A020223 A020224 A020225 A020226 A020227 A020228 A020229

pseudoprimes (10): A020230 A020231 A020232 A020233 A020234 A020235 A020236 A020237 A020238 A020239 A020240 A020241

pseudoprimes (11): A020242 A020243 A020244 A020245 A020246 A020247 A020248 A020249 A020250 A020251 A020252 A020253

pseudoprimes (12): A020254 A020255 A020256 A020257 A020258 A020259 A020260 A020261 A020262 A020263 A020264 A020265

pseudoprimes (13): A020266 A020267 A020268 A020269 A020270 A020271 A020272 A020273 A020274 A020275 A020276 A020277

pseudoprimes (14): A020278 A020279 A020280 A020281 A020282 A020283 A020284 A020285 A020286 A020287 A020288 A020289

pseudoprimes (15): A020290 A020291 A020292 A020293 A020294 A020295 A020296 A020297 A020298 A020299 A020300 A020301

pseudoprimes (16): A020302 A020303 A020304 A020305 A020306 A020307 A020308 A020309 A020310 A020311 A020312 A020313

pseudoprimes (17): A020314 A020315 A020316 A020317 A020318 A020319 A020320 A020321 A020322 A020323 A020324 A020325

pseudoprimes (18): A020326 A045535 A047713 A048950 A045535

pseudoprimes to base 2, or Sarrus numbers: A001567*

pseudoprimes, Carmichael numbers: A002997*

pseudoprimes, Euler-Jacobi: A047713*

pseudoprimes, Lucas: A005845

pseudoprimes, Miller-Rabin primality test: A006945

pseudoprimes, see also Carmichael numbers

pseudoprimes, strong, to base 2: A001262*

psi function: A001615

puzzle sequences , sequences related to :

puzzle sequences: A006567 A059999 A064438

pyramidal numbers , sequences related to :

pyramidal numbers (1): A000292* A000330 A001296 A002411 A002412 A002413 A002414

pyramidal numbers (2): A002415 A005585 A005918 A007584 A007585 A007586 A007587

pyramidal numbers (3): A014797 A014798 A014799 A014800 A014801 A014803

pyramidal numbers (4): A015221 A015222 A015223 A015224 A015225 A015226 A039596

Pythagoras' theorem:: A001652, A004253, A004254, A001653

Pythagorean triples: sequences related to :

Pythagorean triples: A006593 A009096 A010814 A098714 A099829 A099830 A099831 A099832 A099833

Python examples, sequences related to :

Python examples: A001047, A005150, A071531, A048927, A086638

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Qua

q-factorials: see "factorial numbers, q-factorials"

Q-graphs: A007169, A007170, A007171

quadrangulations: A001506, A001507, A001508

quadratic character, sequences with prescribed: A001986, A001988, A001990, A001992

quadratic fields, sequences related to :

quadratic fields, class number of sqrt(-n): A000924

quadratic fields, discriminant of sqrt(-n): A006555, A006557

quadratic fields, Euclidean: A003174* (real), A048981 (real and imaginary), A003246* (discriminants)

quadratic fields, genera of: A003640, A003641, A003642, A003643

quadratic fields, imaginary, by class numbers: 1: A003173; 2: A005847 and A014603; 3: A006203; 4: A046085 and A013658; 5: A046002; 6: A055109 and A046003; 7: A046004; 8: A055110 and A046005; 9: A046006; 10: A055111 and A046007

quadratic fields, imaginary, by class numbers: 11-20: A046008-A046020

quadratic fields, imaginary, by class numbers: PARI program for computing: A005847

quadratic fields, imaginary, by class numbers: see also the entry under: discriminants of imaginary quadratic fields with class number (negated)

quadratic fields, real, by class numbers: 1: A003172*; 2: A029702*

quadratic fields, real, discriminants: A037449

quadratic fields, see also class numbers

quadratic fields, see also A001991, A005474, A001985, A002141, A001989, A001987

quadratic fields, simple: A003172* (real), A003173* (imaginary), A061574 (both)

quadratic fields, totally real of degree n: A006554*

quadratic fields, unique factorization domains: A003172* (real), A003173* (imaginary), A061574 (both)

quadratic forms , sequences related to :

quadratic forms, binary:: A006375, A000003, A006371, A006374

quadratic forms, extreme: A033689*

quadratic forms, genera of: A005141

quadratic forms, minimal norm of: see minimal norm

quadratic forms, one class per genus: A139827

quadratic forms, perfect: A004026*

quadratic forms, populations of , sequences related to :

quadratic forms, populations of: (1) A000024 A000049 A000050 A000067 A000072 A000074 A000075 A000076 A000077 A000205 A000286 A054150

quadratic forms, populations of: (2) A054151 A054152 A054153 A054157 A054159 A054161 A054162 A054163 A054164 A054165 A054166 A054167

quadratic forms, populations of: (3) A054169 A054171 A054173 A054175 A054176 A054177 A054178 A054179 A054180 A054182 A054184 A054186

quadratic forms, populations of: (4) A054187 A054188 A054189 A054191 A054193 A054194 A000018 A000021 A000047 A000286 A068785

quadratic forms, populations of: (5) A000690 A000691 A000692 A000693 A000694 A000709

quadratic forms, ternary: A006376, A006377, A071136

quadratic forms, unimodular, see: lattices, unimodular

Quadratic invariants:: A000807

quadratic nonresidues, consecutive: A002308*

quadratic residues, A046071, A063987, A096008

quadratic residues, consecutive: A002307*

Quadrilaterals:: A002789, A005036, A002579, A002578

quadrinomial coefficients: A001919 A005190 A005718 A005719 A005720 A005721 A005723 A005724 A005725 A005726 A008287*

quadruple factorial numbers: A007662

quandles: A181769*, A176077, A181771, A165200, A179010, A177886, A178432, A181770

quarter-squares: A002620*

quasi-amicable numbers: A003502*, A003503*, A005276*

quasi-orders: A006870*

quasigroups , sequences related to :

quasigroups : A002860*, A057991*, A058171*

quasigroups, asymmetric: A057994*, A057998, A058172, A058173, A058174*, A058176

quasigroups, by idempotent: A058175*, A058176-A058178

quasigroups, commutative: A057992*, A058172, A058177, A089925

quasigroups, self-converse: A057993*, A057996, A058173, A058178

quasigroups, with identity: A000315, A057771*, A057996, A057997*, A057998, A089925

quasigroups: see also Latin squares

quaternary numbers: A007090

quaternions, Hurwitz, prime: A055669, A055670, A055671, A055672

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Que

Quebbemann 32-dimensional lattice: A002272*

queens problem, sequences related to :

queens problem: (1) A000170* A001366 A002562* A002563 A002564 A002565 A002566 A002567 A002568 A002968 A006317 A006717

queens problem: (2) A007630 A007631 A007705 A019317 A019318 A024915 A025603 A025604 A025605 A025606 A030117 A032522

queens problem: (3) A033148 A035005 A035291 A036464 A037009 A047659 A051566 A051567 A051568 A051569 A051570 A051571

queens problem: (4) A051906 A053994 A054500 A054501 A054502

question mark function, see Minkowski's question mark function

Quet transform: A101387*, A100661, A100808

quilt, Mrs. Perkins's: A005670

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Ra

R(n), or n reversed: A004086

r(n): A004018

rabbits, sequences related to :

rabbits, A000045*

rabbits, dying: A000044 A023434 A023435 A023436 A023437 A023438 A023439 A023440 A023441 A023442

races , sequences related to :

races (1): A007350, A007351, A007352, A007353, A007354, A007355, A038025, A038026, A038691, A053402,

races (2): A058376, A093180, A093181, A093182, A096452, A098033, A098044, A111744, A111745, A119498,

races (3): A121573, A125149, A130911, A132189, A156549, A156709, A156749, A158819, A160764, A171717,

races (4): A173026, A176028

races (5): see also prime races

rad(n): A007947

RADD sequences (Reverse then add something), sequences related to :

RADD sequences (Reverse then add something): A117831*

RADD sequences : see also Kaprekar map sequences

RADD sequences : see also RATS sequences

RADD sequences : see also Reverse and Add! sequences

Radon function: see Hurwitz-Radon numbers

Radon theorem: A002661

Ramanujan , sequences related to :

Ramanujan approximation: A000691

Ramanujan numbers tau(n): A000594*, A007659

Ramanujan numbers: see also taxi-cab numbers, especially A001235, A018850

Ramanujan's Lost Notebook: sequences related to :

Ramanujan's Lost Notebook: (1) A000025 A006304 A006305 A006306 A007325 A050203 A053250 A053251 A053252 A053253 A053254 A053255

Ramanujan's Lost Notebook: (2) A053256 A053257 A053258 A053259 A053260 A053261 A053262 A053263 A053264 A053265 A053266 A053267

Ramanujan's Lost Notebook: (3) A053268 A053269 A053270 A053271 A053272 A053273 A053274 A053281 A053282 A053283 A053284 A055101

Ramanujan's Lost Notebook: (4) A055102 A055103 A055104

Ramsey numbers, sequences related to :

Ramsey numbers: A000789 A000791* A003323 A004401 A006474 A006672 A120414* A059442

RAND Corporation list of a million random digits: A002205

random numbers, sequences related to :

random numbers: see also pseudo-random sequences

random numbers: see random sequences

random sequences: A002205*, A079365, A104183

Raney numbers: A062993, A079508

rapidly growing sequences: see: sequences which grow too rapidly to have their own entries

rational numbers , sequences related to :

rational numbers, listings of all: A020652/A020653, A038566/A038567, A038568/A038569, A038566/A020653, A113136/A113137

rational numbers: see also the separate Index to fractions in OEIS

Rational points on curves:: A005527, A005523, A005525, A005526

rationals, enumerating: A002487(n)/A002487(n+1)*, A038566*/A038567*, A038568*/A038569*, A020650*/A020651*, A020652*/A020653*

RATS: Reverse Add Then Sort, sequences related to :

RATS: Reverse Add Then Sort: A004000*, A036839, A066710, A066711, A066713

RATS: see also Kaprekar map sequences

RATS: see also RADD sequences

RATS: see also Reverse and Add! sequences

Raymond strings: A005303, A005304, A005305, A005306

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Rea

reachable configurations on circles: A005787

read n backwards: A004086

rebasing notation b[n]q: see A000695

Recaman's sequence : sequences related to :

Recaman's sequence : A005132*

Recaman's sequence, addition steps: A057165

Recaman's sequence, condensed version: A119632

Recaman's sequence, heights: A064288 A064289* A064290 A064291 A064292 A064293 A064294

Recaman's sequence, quotients and remainders: A065051 A065052

Recaman's sequence, records for a(n)/n: A064621, A064622

Recaman's sequence, segments in: A064492 A065038 A065053

Recaman's sequence, simplified version: A008344 A046901

Recaman's sequence, steps to hit n: A057167; A064227* and A064228* (records)

Recaman's sequence, subtraction steps: A057166

Recaman's sequence, transforms based on: A064365 A022831, A053461

Recaman's sequence, two-dimensional versions: A066201 A066202

Recaman's sequence, variations on: A008336 A064387 A064388 A064389 A063733 A065422 A066199 A066200 A066203 A066204

Recaman's sequence: see also: A064284 A064301 A064369 A064568 A064569 A064970 A065053 A065054 A065055 A065056

reciprocal of n, decimal expansion of: see 1/n

reciprocals of primes: see 1/p

record high values in a sequence {a(i)} occur at indices i such that a(i) > a(j) for all j < i

rectangles, Latin, see Latin squares

recurrence a(2^i+j) ..., sequences related to : recurrence a(2^i+j) = C*a(j) + D*a(j+1), a(0) = A, a(1) = B for following values of (A B C D): (0 1 1 1) A118977, (1 0 1 1) A151702, (1 1 1 1) A151570, (1 2 1 1) A151571, (0 1 1 2) A151572, (1 0 1 2) A151703, (1 1 1 2) A151573, (1 2 1 2) A151574, (0 1 2 1) A160552, (1 0 2 1) A151704, (1 1 2 1) A151568, (1 2 2 1) A151569, (0 1 2 2) A151705, (1 0 2 2) A151706, (1 1 2 2) A151707, (1 2 2 2) A151708

recurrence, linear, constant coefficients, sequences related to :

See Index to linear recurrence relations

recurrences over rings: A005984

recurrences, of the form a(n) = k*a(n - 1) +/- a(n - 2), sequences related to :

recurrences, of the form a(0) = 2; a(1) = k; a(n) = k*a(n - 1) + a(n - 2): (1) A000032 A002203 A006497 A014448 A087130 A085447 A086902 A086594 A087798 A086927

recurrences, of the form a(0) = 2; a(1) = k; a(n) = k*a(n - 1) + a(n - 2): (2) A001946 A086928 A088316 A090300 A090301 A090305 A090306 A090307 A090308 A090309

recurrences, of the form a(0) = 2; a(1) = k; a(n) = k*a(n - 1) + a(n - 2): (3) A090310 A090313 A090314 A090316 A087281 A087287 A089772

recurrences, of the form a(0) = 2; a(1) = k; a(n) = k*a(n - 1) - a(n - 2): (1) A057079 (and A087204) A007395 A005248 A003500 A003501 A003499 A056854 A086903 A056918 A087799

recurrences, of the form a(0) = 2; a(1) = k; a(n) = k*a(n - 1) - a(n - 2): (2) A057076 A087800 A078363 A067902 A078365 A090727 A078367 A087215 A078369 A090728

recurrences, of the form a(0) = 2; a(1) = k; a(n) = k*a(n - 1) - a(n - 2): (3) A090729 A090730 A090731 A090732 A090733 A090247 A090248 A090249 A090251 A087265 A065705 A089775

reduced residue system: A070194

reduced totient function psi: A002322*, A002174*, A002396*, A002616

refactorable numbers: A033950*

refactorable, strongly: A141586

reflection coefficients: A007179

regions , sequences related to :

regions formed by lines in plane: A000124, A055503

regions formed by spheres in space: A046127, A014206, A059173, A059174, A059250

regions in regular polygon: see Poonen-Rubinstein paper

regular connected grpahs, see graphs, regular connected

regular n-gon with all diagonals drawn: see Poonen-Rubinstein paper

regular polyhedra, see: polyhedra, regular

regular polytopes, see: polytopes, regular

regular primes: see primes, regular

regular sequences: A003513

Reisel numbers: see Riesel numbers

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Rel

relations on n points: A001173* (unlabeled), A000595* (labeled)

relations, sequences related to :

relations, antisymmetric transitive: A091566

relations, antisymmetric: A001174*

Relations, connected, A002501, A002502

Relations, dissimilarity, A006541

Relations, reflexive, A000666, A000250

relations, self-converse: A002500*

relations, symmetric reflexive: A000250*

relations, symmetric: A000666*, A070166

relations, transitive: A006905* A091073*

Relations, ultradissimilarity, A005121

Relations, vacuously transitive, A003041

relations, without symmetry: A030242*

relations: see also A000665, A000957, A000663, A000662, A001377, A001374, A001376, A001375

relatively prime pairs of numbers: see pairs of relatively prime numbers

relatively prime triples of numbers: see triples of relatively prime numbers

remove 2's from n: A000265

remove squares!: A002734

rencontres numbers, sequences related to :

rencontres numbers, triangle of: A008290*

rencontres numbers: A000166*

rencontres numbers: see also A000240, A000387

rencontres numbers:: A000166*, A000387, A000449, A000475

repdigit (repeated digit) numbers: A010785*

repeating substrings: see doubling substrings

repfigit or Keith numbers: A007629*, A06576*

representation degeneracies, sequences related to :

representation degeneracies:: A005290, A005292, A005291, A005297, A005299, A005293, A005304, A005294, A005300, A005298, A005303, A005305, A005306, A005295, A005296, A005301, A005302

representations as sums , etc., sequences related to :

representations as sums of Fibonacci numbers, A000119, A000121, A006133, A006132

representations as sums of increasing powers, A003315

representations as sums of Lucas numbers, A003263

representations as sums of squares, A006892, A002291, A002611, A002470, A002290, A002610, A002614, A002288, A002612, A002607, A002615, A002292, A002609, A002608, A002613

representations as sums of triangular numbers, A006894, A006893

representations of 0, A000980

representations of 1, A002967

representations of symmetric group, A000701

repunit primes: see primes, repunit

repunits: A002275*, A003020

(E?)(L1) http://oeis.org/wiki/Index_to_OEIS:_Section_Res

residue classes mod n: see "congruent to ..."

residues, sequences related to :

residues, cubic: A040028, A059898, A059914, A001133

Residues:: A003276, A000445, A001134, A001135, A001136

resistances: A048211, A051389, A046825, A005840

Reverse Add Then Sort: see RATS

Reverse and Add! , sequences related to :

Reverse

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