A163144 Partial sums of A058133.

1, 3, 9, 36, 192, 1565, 19295, 878272, 1844953969, 52993098927711

Offset

1,2

Comments

3 and 1844953969 are prime.

Links

Table of n, a(n) for n=1..10.

Crossrefs

Cf. A058129, A058133, A118601.

Sequence in context: A352645 A245154 A038079 * A128094 A135474 A279121

Adjacent sequences: A163141 A163142 A163143 * A163145 A163146 A163147

Keyword

nonn

Author

Jonathan Vos Post, Jul 21 2009

Extensions

Edited (but not checked) by N. J. A. Sloane, Jul 25 2009

Status

approved