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A171196 G.f. satisfies: A(x) = 1/(1 - x*A(2x)^6). 2
1, 1, 13, 397, 23261, 2532093, 520285021, 206632208765, 161306955003037, 249753449538341821, 770275887324912000733, 4741871606773351738426877, 58325180751309642789169099037, 1434100517517383561901937569640509 (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/(1-x*subst(A, x, 2*x)^6) ); polcoeff(A, n)}

CROSSREFS

Cf. A015083, A171192-A171195, A171197, A171198.

Sequence in context: A203972 A013527 A009010 * A286189 A280553 A162446

Adjacent sequences:  A171193 A171194 A171195 * A171197 A171198 A171199

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Dec 05 2009

STATUS

approved

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Last modified April 23 05:42 EDT 2021. Contains 343199 sequences. (Running on oeis4.)