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.

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A102045 Aronsonian sequence generated by the sentence, "H is the first, fifth, sixteenth, twenty-fifth, thirty-sixth, thirty-eighth, forty-seventh, ... letter in this sentence.".

Original entry on oeis.org

1, 5, 16, 25, 36, 38, 47, 49, 57, 59, 71, 81, 93, 103, 119, 133, 140, 148, 155, 171, 183, 189, 196, 200, 204, 229, 231, 235, 251, 255, 277, 287, 291, 298, 308, 315, 319, 335, 339, 347, 351, 363, 367, 384, 388, 396, 409, 417, 426, 430, 450, 466, 470, 490, 494
Offset: 1

Views

Author

Michael Joseph Halm, Feb 12 2005

Keywords

Comments

This version counts hyphens, A055508 does not.

Examples

			a(3) = 16 because the third H in "H is the first, fifth, ... letter in this sentence." is its 16th letter.

Crossrefs

Cf. A005224.

A123303 E ist der erste, sechste, achte, zwoelfte, vierzehnte, neunzehnte, vierundzwanzigste,... Buchstabe dieses Satzes, Kommas und Leerstellen nicht mitgezaehlt.

Original entry on oeis.org

1, 6, 8, 12, 14, 19, 24, 28, 32, 35, 38, 42, 44, 48, 52, 55, 69, 86, 89, 96, 104, 107, 115
Offset: 1

Views

Author

R. J. Mathar, Nov 08 2006

Keywords

Comments

German version of the Aranson sequences A005224, A014367, A072421, A072423, A080517, A080520 with the most common transliteration of the diphthongs as ae, oe, ue, ss etc.

Examples

			0123456789
0 Eistderer
1stesechste
2achtezwoel
3ftevierzeh
4nteneunzeh
5ntevierund
6zwanzigste
7achtundzwa
8nzigstezwe
9iunddreiss
0igstefuenf
1unddreissi

A135940 The third, eighth, fourteenth... letters in this sentence are the last letters of the words they're in.

Original entry on oeis.org

3, 8, 14, 24, 36, 47, 59, 69, 79, 91, 102, 105, 112, 118, 121, 128, 133, 136, 143, 150, 153, 160, 170, 173, 180, 191, 194, 201, 213
Offset: 1

Views

Author

J. Lowell, Mar 03 2008

Keywords

Comments

This sequence does not use the word 'and' and writes '100' as 'one hundred' not just 'hundred'; e.g. 'one hundred two' and not 'hundred two' or 'one hundred and two' or 'hundred and two'. - Alvin Hoover Belt, Jul 19 2019

Crossrefs

Cf. A005224.

Extensions

a(12)-a(29) from Alvin Hoover Belt, Jul 19 2019

A261545 a(n) indicates which letter of the English alphabet is the n-th most common.

Original entry on oeis.org

5, 20, 1, 15, 9, 14, 19, 18, 8, 12, 4, 3, 21, 13, 6, 16, 7, 23, 25, 2, 22, 11, 24, 10, 17, 26
Offset: 1

Views

Author

Peter Norvig and Robert G. Wilson v, Aug 24 2015

Keywords

Comments

This is according to Mayzner revisited (Peter Norvig), Cornell, British National Corpus and the Brown corpus.

Examples

			The most common letter of the English alphabet is the fifth letter 'E', so a(1)=5; the second most common letter is the twentieth letter 'T', so a(2)=20; the third most common letter is 'A', so a(3)=1; etc.

References

  • Martin Gardner, "Codes, Ciphers, and Secret Writing." Dover Publications, Inc. New York 1984.
  • M. S. Mayzner, Margaret Elizabeth Tresselt, "Tables of Single-letter and Digram Frequency Counts for Various Word-length and Letter-position Combinations," Psychonomic Press, 1965.
  • A. Young," Mathematical Ciphers: From Caesar to RSA." Mathematical World, Volume 25. American Mathematical Society 2006.

Links

Crossrefs

Cf. A005224, A049525, A055508, A126810.

Programs

  • Mathematica
    ToCharacterCode["etaoinsrhldcumfpgwybvkxjqz"] - 96
Previous Showing 31-34 of 34 results.

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

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