1,1

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

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

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

Sequence in context: A094524 A243817 A098412 * A136342 A126609 A079367

Adjacent sequences: A261915 A261916 A261917 * A261919 A261920 A261921

nonn,base

N. J. A. Sloane, Sep 13 2015

approved