1,6

Table of n, a(n) for n=1..75.

For n = 10 the corresponding term A305468(10) equals 19, and both a(10) = 27 and 27*19 = 513 are binary palindromes.

Cf. A006995, A305468.

Sequence in context: A074903 A091084 A016610 * A141707 A329593 A263490

Adjacent sequences: A305467 A305468 A305469 * A305471 A305472 A305473

nonn,base

Jeffrey Shallit, Jun 02 2018

approved