A028020 Expansion of 1/((1-2x)(1-8x)(1-11x)(1-12x)).

1, 33, 711, 12677, 203175, 3043341, 43527247, 602201829, 8127414999, 107618860349, 1403846663583, 18094236941781, 230951316035623, 2924174000253357, 36776292351134319, 459910668538753733

Offset

0,2

Links

Table of n, a(n) for n=0..15.

Index entries for linear recurrences with constant coefficients, signature (33, -378, 1688, -2112).

Formula

a(n)=(27*12^(n+3)-40*11^(n+3)+15*8^(n+3)-2^(n+4))/1080. [Yahia Kahloune, May 29 2013]

Crossrefs

Sequence in context: A028144 A028098 A028022 * A025130 A081141 A021021

Adjacent sequences: A028017 A028018 A028019 * A028021 A028022 A028023

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved