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A028005 Expansion of 1/((1-2x)(1-7x)(1-8x)(1-9x)). 0
1, 26, 437, 6034, 74469, 855042, 9338629, 98346578, 1007581157, 10104420898, 99624776901, 968871159282, 9317203571365, 88769381856194, 839190346712453, 7881486986566546, 73610099911105893, 684230318175538530 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

FORMULA

a(n)=(15*9^(n+3)-35*8^(n+3)+3*7^(n+4)-2^(n+3))/210. [Yahia Kahloune, Jun 05 2013]

CROSSREFS

Sequence in context: A028079 A028117 A028076 * A028065 A028113 A026562

Adjacent sequences:  A028002 A028003 A028004 * A028006 A028007 A028008

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified December 2 17:56 EST 2021. Contains 349445 sequences. (Running on oeis4.)