OFFSET
1,2
COMMENTS
29 is in sequence because 29 ("veintinueve") and 92 ("Noventa y dos") each have 11 letters in Spanish.
Obviously includes all palindromes (A002113).
LINKS
Álvar Ibeas, Table of n, a(n) for n = 1..10000
CROSSREFS
KEYWORD
nonn,word,base
AUTHOR
Claudio Meller, Jun 08 2009
STATUS
approved