A171206 G.f. satisfies A(x) = 1 + x*A(2x)^6.

1, 1, 12, 348, 19744, 2108784, 428817600, 169398274624, 131889504749568, 203937600707475456, 628561895904796999680, 3868208404121906515820544, 47571342639450113377565933568, 1169589733863427138021074362433536

Offset

0,3

Links

Seiichi Manyama, Table of n, a(n) for n = 0..79

Prog

(PARI) {a(n)=local(A=1+x+x*O(x^n)); for(i=0, n, A=1+x*subst(A, x, 2*x)^6); polcoeff(A, n)}

Crossrefs

Cf. A135867, A171200-A171205, A171207, A171208-A171211, A343439.

Sequence in context: A077296 A080481 A209425 * A219407 A203148 A120813

Adjacent sequences: A171203 A171204 A171205 * A171207 A171208 A171209

Keyword

nonn

Author

Paul D. Hanna, Dec 05 2009

Status

approved