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 1-2 of 2 results.

A019270 A self-descriptive sequence: positions of vowels in "one, three, seven,...".

Original entry on oeis.org

1, 3, 7, 8, 10, 12, 14, 15, 20, 24, 27, 29, 30, 33, 34, 37, 40, 41, 45, 51, 56, 57, 61, 66, 68, 72, 77, 79, 82, 88, 95, 96, 99, 104, 105, 109, 114, 116, 119, 124, 128, 130, 132, 137, 139, 141, 145, 147, 149, 154, 157, 162, 164, 167, 171, 173, 175, 180
Offset: 1

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Author

Scott Sauyet (ssauyet(AT)claude.math.wesleyan.edu)

Keywords

Comments

The following sequence of words has the property that it tells which letters in the sequence are vowels: one, three, seven, eight, ten, twelve, ... Now replace the words by their numerical values.
If there is a choice, pick the smallest number (or word) that makes sense. Hyphens and spaces are ignored.

Examples

			The first vowel is the "o" in "one", in position 1, the second vowel is the "e" in "one", the third letter in the sentence (i.e. in position 3) and so on.

References

  • E. Angelini, "Jeux de suites", in Dossier Pour La Science, pp. 32-35, Volume 59 (Jeux math'), April/June 2008, Paris.

Crossrefs

See A139133 for a version involving consonants.
See A139132 for a French version.

A139133 A self-descriptive sequence: positions of consonants in "two, one, five, seven, nine, eleven, thirteen, fifteen, ...".

Original entry on oeis.org

2, 1, 5, 7, 9, 11, 13, 15, 16, 18, 21, 23, 25, 26, 27, 29, 30, 33, 34, 36, 37, 40, 41, 43, 44, 47, 50, 51, 52, 55, 56, 57, 59, 60, 61, 63, 65, 66, 68, 69, 70, 71, 72, 73, 76, 77, 79, 80, 81, 82, 84, 86, 87, 89, 90, 91, 92, 94, 95, 96, 98, 99
Offset: 1

Views

Author

N. J. A. Sloane

Keywords

Comments

If there is a choice, pick the smallest number (or word) that makes sense. Hyphens and spaces are ignored.

References

  • E. Angelini, "Jeux de suites", in Dossier Pour La Science, pp. 32-35, Volume 59 (Jeux math'), April/June 2008, Paris.

Crossrefs

See A019270 (a version involving vowels rather than consonants) for further information.
For a French version of the "vowels" sequence see A139132.

Extensions

Edited by N. J. A. Sloane, Jan 04 2016 at the suggestion of Eric Angelini
More terms from Sean A. Irvine, Jan 06 2016
Showing 1-2 of 2 results.

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

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