0,3

Obviously includes all palindromes (A002113).

35 is in sequence because "thirty-five" and "fifty-three" each have 10 letters (dashes not counted).

Table of n, a(n) for n=0..63.

35 is in sequence because 35 ("thirty-five") and 53 ("fifty-three") each have 10 letters in English (dashes not counted).

Sequence in context: A291146 A023358 A061379 * A050761 A030721 A190296

Adjacent sequences: A107319 A107320 A107321 * A107323 A107324 A107325

base,nonn,word

David W. Wilson, May 21 2005

approved