A028132 Expansion of 1/((1-4x)(1-6x)(1-7x)(1-10x)).

1, 27, 465, 6535, 81921, 956487, 10657585, 115031895, 1214419041, 12622599847, 129754165905, 1323318833655, 13420125351361, 135548860481607, 1365156409213425, 13720647130385815, 137698507311406881

Offset

0,2

Links

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

Index entries for linear recurrences with constant coefficients, signature (27, -264, 1108, -1680).

Formula

a(n)=(10^(n+3)-8*7^(n+3)+9*6^(n+3)-2*4^(n+3))/72. [Yahia Kahloune, Jun 02 2013]

Crossrefs

Sequence in context: A395856 A028166 A028135 * A028089 A028121 A028080

Adjacent sequences: A028129 A028130 A028131 * A028133 A028134 A028135

Keyword

nonn

Author

N. J. A. Sloane

Status

approved