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 1-4 of 4 results.

A096828 Numbers that must appear in any variation of A097390.

Original entry on oeis.org

3, 4, 5, 6, 7, 8, 9, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25
Offset: 1

Views

Author

Matthew Vandermast, Aug 13 2004

Keywords

Comments

These are also the numbers that must appear an infinite number of times in any A097390-like sequence (in English). For the numbers that can possibly appear infinitely often in such a sequence, see A096829.
Also, numbers that appear in A097395.

Examples

			The number 1, not listed here, also appears in A097390, since the sentence on which A097390 is based ("This sentence contains the twentieth, eighth, ninth ... letters of the English alphabet, in order.") includes the word "contains," which includes "a," the first letter of the English alphabet. But this need not have been the case. Had the sentence begun: "This sentence is composed of ...", for example, 1 would not have been a member of the resulting sequence.

Crossrefs

Cf. A005224, A097389, A097390, A096829, A097395.

A096829 Numbers that can appear an infinite number of times in a variation of A097390.

Original entry on oeis.org

3, 4, 5, 6, 7, 8, 9, 12, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25
Offset: 1

Views

Author

Matthew Vandermast, Aug 13 2004

Keywords

Examples

			The number 12 appears infinitely often in any sequence based on a variation of the A097390 sentence ("This sentence contains the twentieth, eighth, ninth ... letters of the English alphabet, in order") that contains a "k" or "l" in the prologue (e.g. "This sentence, amazingly, contains the twentieth, eighth, ninth ..."). Otherwise, it does not appear at all. The other members of the sequence must appear infinitely often in any sequence based on any English variation of A097390 that generates an infinite string of ordinal number-words (cf. A096828).

Crossrefs

Cf. A005224, A097389, A097390, A096828, A097395.

A097389 Numbers that appear in A097390.

Original entry on oeis.org

1, 3, 4, 5, 6, 7, 8, 9, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25
Offset: 1

Views

Author

Matthew Vandermast, Aug 13 2004

Keywords

Comments

All numbers listed appear an infinite number of times except 1, which appears once.

Crossrefs

Cf. A005224, A096828, A097390, A096829, A097395.

A097395 Values of ordinal numbers in the following true sentence: "The twentieth, eighth, fifth ... letters of the English alphabet appear in this sentence, in order.".

Original entry on oeis.org

20, 8, 5, 20, 23, 5, 14, 20, 9, 5, 20, 8, 5, 9, 7, 8, 20, 8, 6, 9, 6, 20, 8, 20, 23, 5, 14, 20, 9, 5, 20, 8, 20, 23, 5, 14, 20, 25, 20, 8, 9, 18, 4, 6, 9, 6, 20, 8, 6, 15, 21, 18, 20, 5, 5, 14, 20, 8, 20, 23, 5, 14, 20, 9, 5, 20, 8, 14, 9, 14, 20, 5, 6, 9, 6, 20, 8, 20, 23, 5, 14, 20, 9, 5, 20
Offset: 1

Views

Author

Matthew Vandermast, Aug 13 2004

Keywords

Comments

Probably the most basic A097390-like sequence possible.

Crossrefs

Cf. A005224, A097389, A097390, A096828, A096829.
Showing 1-4 of 4 results.

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