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A025989 Expansion of 1/((1-2x)(1-5x)(1-6x)(1-10x)). 0
1, 23, 347, 4375, 50211, 546063, 5750347, 59371895, 605580371, 6130227103, 61765086747, 620509140615, 6222647943331, 62333853156143, 623992946413547, 6243906815856535, 62463186581999091, 624777847926261183 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..17.

FORMULA

a(n) = -2^n/12 +25*5^n/3 -27*6^n/2 +25*10^n/4. R. J. Mathar, Jun 20 2013

MATHEMATICA

CoefficientList[Series[1/((1-2x)(1-5x)(1-6x)(1-10x)), {x, 0, 20}], x]  (* Harvey P. Dale, Apr 01 2011 *)

CROSSREFS

Sequence in context: A077309 A042016 A025976 * A125480 A023950 A268465

Adjacent sequences:  A025986 A025987 A025988 * A025990 A025991 A025992

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified August 12 23:52 EDT 2022. Contains 356077 sequences. (Running on oeis4.)