A261918 Numbers which in base 5 are neither palindromes nor the sum of two palindromes.

11, 17, 23, 51, 131, 141, 146, 147, 149, 151, 153, 154, 163, 164, 169, 173, 175, 177, 179, 181, 184, 185, 194, 195, 199, 200, 201, 203, 205, 206, 211, 215, 221, 225, 226, 229, 231, 236, 237, 241, 251, 259, 261, 262, 263, 266, 267, 271, 281, 287, 289, 291, 296, 297

Offset: 1

Author

N. J. A. Sloane, Sep 13 2015

Keywords

• nonn
• base

Comments

The terms less than 20000, and conjecturally all terms, are the sum of three base 5 palindromes.

Links

• N. J. A. Sloane, Table of n, a(n) for n = 1..6235

Crossrefs

Cf. A029952, A261917; A035137 (base 10 analog).