1,3

Conjecture: if 2^(k+1)<=n<3*2^k for k>=1, then a(n)=0.

Table of n, a(n) for n=1..21.

Cf. A115507, A115508.

Sequence in context: A147699 A250023 A151669 * A279360 A134312 A195581

Adjacent sequences: A115506 A115507 A115508 * A115510 A115511 A115512

nonn,more

Max Alekseyev, Jan 31 2006

approved