A061815 G.f. A(x) satisfies A(x) = 1+Sum_{j=0 to infinity} ((1 + x^(j+1)*A(x))^a_j-1).

1, 1, 2, 5, 14, 42, 133, 433, 1455, 4958, 17247, 60502, 215353, 770865, 2789365, 10134529, 37130526, 136451349, 504837219, 1872121732, 6980767968, 26078614284, 97872756530, 367861581953, 1388061197005, 5243972732886

Offset

0,3

Links

Table of n, a(n) for n=0..25.

Crossrefs

Cf. A061396.

Sequence in context: A126569 A162748 A374548 * A340361 A308329 A202061

Adjacent sequences: A061812 A061813 A061814 * A061816 A061817 A061818

Keyword

nonn

Author

Vladeta Jovovic, Jun 22 2001

Status

approved