cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-5 of 5 results.

A072763 Duplicate of A057846.

Original entry on oeis.org

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 41, 51, 16, 17, 81, 91, 20, 12, 22, 32, 42, 52, 62, 72, 82, 92, 30, 13, 32
Offset: 1

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Author

Keywords

A072809 Abntu sequence (Bantu alphabetized): list the numbers which have no 2's in their decimal expansion, but sort the digits of each term into alphabetical order.

Original entry on oeis.org

0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 41, 51, 16, 17, 81, 91, 30, 13, 33, 43, 53, 63, 73, 83, 93, 40, 41, 43, 44, 54, 46, 47, 84, 49, 50, 51, 53, 54, 55, 56, 57, 85, 59, 60, 16, 63, 46, 56, 66, 76, 86, 96, 70, 17, 73, 47, 57, 76, 77, 87, 97, 80, 81, 83, 84, 85, 86, 87, 88, 89, 90, 91, 93, 49, 59, 96, 97, 89, 99, 100, 110, 130
Offset: 1

Views

Author

Michael Joseph Halm, Aug 08 2002

Keywords

Comments

[Bantu of course means "ban 2's".]

References

  • M. J. Halm, Word Weirdness, Mpossibilities 66 (Feb. 1998), p. 5.
  • M. J. Halm, Sequences (Re)discovered, Mpossibilities 81 (Aug. 2002), p. 1.

Links

Crossrefs

Cf. A057846 (supersequence), A225805 (French version of the latter).

Formula

Digits are taken in the order 8 5 4 9 1 7 6 3 0.

Extensions

Edited by N. J. A. Sloane, Mar 14 2009
Title and five terms corrected by Rick L. Shepherd, Jul 26 2013

A225805 Sort the digits of n into alphabetical order according their French name: The "French Obsessive Filer's Sequence".

Original entry on oeis.org

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 21, 31, 41, 51, 61, 71, 81, 91, 20, 21, 22, 23, 24, 52, 26, 27, 28, 29, 30, 31, 23, 33, 43, 53, 63, 73, 83, 93, 40, 41, 24, 43, 44, 54, 46, 47, 84, 94, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 26, 63, 46, 56
Offset: 0

Views

Author

M. F. Hasler, Jul 28 2013

Keywords

Comments

French version of A057846, see there for references.
Digits are sorted in the order: 5="cinq", 2="deux", 8="huit", 9="neuf", 4="quatre", 7="sept", 6="six", 3="trois", 1="un", 0="zéro".
Works well for the French language (as for English), because 0="zero" is sorted last. The exact German analog cannot be stored on OEIS, since 0="null" comes before, e.g., 2="zwei": This would yield "02" for 20, but leading zeros are not allowed for terms on OEIS.

Crossrefs

Cf. A057846, A072809.

Programs

  • PARI
    (n,o=[9, 8, 1, 7, 4, 0, 6, 5, 2, 3])->{ sum(i=1,#n=vecsort(digits(n),(a,b)->o[b+1]-o[a+1]),n[i]*10^i)/10}

A119796 Zero through ten in alphabetical order of English reverse spelling.

Original entry on oeis.org

3, 9, 1, 5, 10, 7, 0, 2, 4, 8, 6
Offset: 1

Views

Author

Jonathan Vos Post, Jul 30 2006

Keywords

Examples

			a(1) = 3 because EERHT comes alphabetically first.
a(2) = 9 because ENIN comes alphabetically second.
a(3) = 1 because ENO comes alphabetically third.
a(4) = 5 because EVIF comes alphabetically fourth.

Crossrefs

Cf. A000052, A004740, A019440, A026081, A001058, A057846, A108067, A072991.

A119898 1-digit numbers arranged in alphabetical order of English spelling reversed, then the 2-digit numbers so arranged, then the 3-digit numbers, etc.

Original entry on oeis.org

3, 9, 1, 5, 7, 0, 2, 4, 8, 6, 93, 53, 83, 73, 23, 33, 43, 63, 99, 59, 89, 79, 29, 39, 49, 69, 91, 51, 81, 71, 21, 31, 41, 61, 95, 55, 85, 75, 25, 35, 45, 65, 12, 19, 15, 18, 17, 13, 14, 16, 10, 11, 97, 57, 87, 77, 27, 37, 47, 67, 92, 52, 82, 72, 22, 32, 42, 62, 94, 54, 84, 74, 24
Offset: 1

Views

Author

Jonathan Vos Post, Aug 01 2006

Keywords

Comments

Analog of A000052 where the alphabetical order is applied not to English name of integer but to the English name whose letters are then reversed.

Examples

			Eerht, Enin, Eno, Evif, Neves, Orez, Owt, Ruof, Thgie, Xis;
Eerhtytenin, Eerhtytfif, Eerhtythgie, Eerhtytneves, Eerhtytnewt, Eerhtytriht, Eerhtytrof, Eerhtytxis, Eninytenin, Eninytfif, Eninythgie, Eninytneves, Eninytnewt, Eninytriht, Eninytrof, Eninytxis, Enoytenin, Enoytfif, Enoythgie, Enoytneves, Enoytnewt, Enoytriht, Enoytrof, Enoytxis, Evifytenin, Evifytfif, ...

Crossrefs

Cf. A000052, A004740, A019440, A026081, A001058, A057846, A108067, A072991.

Programs

  • Mathematica
    f[a_, b_] := Sort@ Table[{ StringReverse[ StringReplace[ IntegerName[h, "Words"], {"\[Hyphen]" -> ""}]], h}, {h, a, b}]; Last /@ Join[f[0, 9], f[10, 99]] (* Giovanni Resta, Jun 13 2016 *)

Extensions

Data and example corrected by Giovanni Resta, Jun 13 2016
Showing 1-5 of 5 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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