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.

A161405 Smallest nonnegative integer containing the n-th letter of the alphabet (in Spanish), or -1 if no such number exists.

Original entry on oeis.org

4, 1000000000000, 0, 2, 0, -1, -1, 8, 5, -1, -1, 1000, 1000, 1, -1, 0, 1000000000000000000000000000000000000000000, 15, 0, 2, 3, 1, 9, -1, 1000000000000000000000000000000000000, 31, 10
Offset: 1

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Author

Claudio Meller, Jun 09 2009

Keywords

Comments

There is no known number that contains letters F, G, J, K, Q or W in Spanish

Examples

			a(8) = 8 (ocho), the smallest number whose name contains 'h'.
		

Crossrefs

Cf. A111098.

Extensions

a(8) and a(17) corrected by Álvar Ibeas, Sep 20 2020