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A132869 Expansion of 1/(1-8x*c(9x)), where c(x) is the g.f. of A000108 . 2
1, 8, 136, 2960, 73000, 1941488, 54308944, 1575042848, 46933604200, 1428339725360, 44208223638256, 1387283904693728, 44037051952177936, 1411537432519587680, 45622957237070603680, 1485278571381185936960 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..15.

FORMULA

a(n)=Sum_{k, 0<=k<=n}A039599(n,k)*(-1)^k*9^(n-k). - Philippe Deléham, Dec 11 2007

MAPLE

c:=proc(x) options operator, arrow: (1/2-(1/2)*sqrt(1-4*x))/x end proc: G:=1/(1-8*x*c(9*x)): Gser:=series(G, x=0, 20): seq(coeff(Gser, x, n), n=0..16); - Emeric Deutsch, Dec 20 2007

CROSSREFS

Sequence in context: A072072 A195614 A131927 * A036915 A238465 A049211

Adjacent sequences:  A132866 A132867 A132868 * A132870 A132871 A132872

KEYWORD

nonn

AUTHOR

Philippe Deléham, Nov 18 2007

EXTENSIONS

More terms from Emeric Deutsch, Dec 20 2007

STATUS

approved

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Last modified February 25 00:39 EST 2018. Contains 299630 sequences. (Running on oeis4.)