1,4

The difference from A056768 is that the number itself (unpartitioned) is not counted.

Table of n, a(n) for n=1..40.

a(n) = A056768(n) - 1. - R. J. Mathar, Nov 27 2009

Cf. A000040.

Sequence in context: A186413 A080084 A065093 * A295998 A129299 A171238

Adjacent sequences: A168467 A168468 A168469 * A168471 A168472 A168473

nonn

Juri-Stepan Gerasimov, Nov 26 2009

a(7) corrected and sequence extended by R. J. Mathar, Nov 27 2009

approved