1,1

Table of n, a(n) for n=1..55.

Cf. A000027, A000040, A156615.

Sequence in context: A072214 A233535 A007660 * A156615 A158054 A134412

Adjacent sequences: A158052 A158053 A158054 * A158056 A158057 A158058

nonn,base

Juri-Stepan Gerasimov, Mar 12 2009

Corrected by D. S. McNeil, Mar 21 2009

approved