A161383 Spanish name for number and its reverse have the same number of letters.

1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 24, 27, 29, 33, 36, 38, 42, 44, 47, 49, 55, 63, 66, 68, 72, 74, 77, 79, 83, 86, 88, 92, 94, 97, 99, 101, 111, 116, 118, 121, 131, 141, 151, 161, 171, 181, 191, 202, 203, 204, 206, 208, 212, 213, 214, 222, 223, 224, 226, 228, 232, 233

Offset: 1

Author

Claudio Meller, Jun 08 2009

Keywords

• nonn
• word
• base

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

Cf. A107322.