1,1

Table of n, a(n) for n=1..29.

Subsequence of A029743.

Cf. A030284, A249953.

Sequence in context: A107057 A212319 A161379 * A038945 A215210 A177997

Adjacent sequences: A250170 A250171 A250172 * A250174 A250175 A250176

nonn,base,fini,full

Zak Seidov, Dec 05 2014

approved