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A261918 Numbers which in base 5 are neither palindromes nor the sum of two palindromes. 3
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

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).

Sequence in context: A094524 A243817 A098412 * A136342 A126609 A079367

Adjacent sequences:  A261915 A261916 A261917 * A261919 A261920 A261921

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Sep 13 2015

STATUS

approved

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Last modified July 5 21:00 EDT 2020. Contains 335473 sequences. (Running on oeis4.)