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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A174991 A005606 applied to itself.

Original entry on oeis.org

20, 6, 20, 20, 19, 19, 14, 14, 6, 6, 20, 6, 20, 20, 19, 19, 14, 14, 6, 6, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14
Offset: 0

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Author

Jonathan Vos Post, Apr 03 2010

Keywords

Comments

Position in the alphabet of the first letter of the position of the alphabet of the first letter of n (in English).

Examples

			a(0) = 20 because "zero" begins with 'Z' and 'Z' is the twentieth letter hence A005606(0)=26; "twentysix" begins with "T" which is the twentieth letter in the alphabet. a(1) = 6 because "one" begins with 'O' and 'O' is the fifteenth letter hence A005606(1)=15; "fifteen" begins with "F" which is the sixth letter in the alphabet.

Crossrefs

Cf. A005606, A114332.

Formula

a(n) = A005606(A005606(n)).
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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