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A171208 G.f. satisfies: A(x) = 1 + x*A(2x)^7. 3
1, 1, 14, 476, 31640, 3953488, 939383200, 433281169216, 393718899904640, 710399428248892928, 2554705943898166145024, 18342976469146094416494592, 263185684727811758287894478848, 7549222852919288301041224694890496 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..13.

PROG

(PARI) {a(n)=local(A=1+x+x*O(x^n)); for(i=0, n, A=1+x*subst(A, x, 2*x)^7); polcoeff(A, n)}

CROSSREFS

Cf. A135867, A171200-A171207, A171209, A171210-A171211.

Sequence in context: A005790 A208563 A200061 * A331612 A275092 A275348

Adjacent sequences:  A171205 A171206 A171207 * A171209 A171210 A171211

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Dec 05 2009

STATUS

approved

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Last modified October 27 21:54 EDT 2021. Contains 348290 sequences. (Running on oeis4.)