A028005 Expansion of 1/((1-2x)(1-7x)(1-8x)(1-9x)).

1, 26, 437, 6034, 74469, 855042, 9338629, 98346578, 1007581157, 10104420898, 99624776901, 968871159282, 9317203571365, 88769381856194, 839190346712453, 7881486986566546, 73610099911105893, 684230318175538530

Offset

0,2

Links

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

Index entries for linear recurrences with constant coefficients, signature (26, -239, 886, -1008).

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