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A025979 Expansion of 1/((1-2x)(1-4x)(1-8x)(1-12x)). 0
1, 26, 452, 6664, 90384, 1169952, 14730304, 182323328, 2232488192, 27147248128, 328628192256, 3966436411392, 47780455321600, 574831345147904, 6909703728939008, 83010267592032256, 996873802452369408 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

FORMULA

G.f.: 1/((1-2*x)*(1-4*x)*(1-8*x)*(1-12*x)).

a(n) = -2^n/15 +4^n/1 -16*8^n/3 +27*12^n/5. - R. J. Mathar, Jun 20 2013

CROSSREFS

Sequence in context: A025981 A025996 A023540 * A020970 A023953 A020968

Adjacent sequences:  A025976 A025977 A025978 * A025980 A025981 A025982

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified July 6 04:31 EDT 2022. Contains 355108 sequences. (Running on oeis4.)