0,3

Table of n, a(n) for n=0..70.

I would very much like a g.f. for this sequence!

Cf. A151843-A151874.

Sequence in context: A275748 A216625 A122581 * A220247 A220319 A220342

Adjacent sequences: A151868 A151869 A151870 * A151872 A151873 A151874

nonn

N. J. A. Sloane, Jul 17 2009

approved