A028101 Expansion of 1/((1-3x)(1-8x)(1-9x)(1-12x)).

1, 32, 661, 11228, 170905, 2428664, 32963197, 433285556, 5565811009, 70301927696, 876950844133, 10837103324684, 132978429495913, 1623019468693928, 19728775328561869, 239074474267587812

Offset

0,2

Links

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

Index entries for linear recurrences with constant coefficients, signature (32,-363,1692,-2592).

Formula

a(n)=(5*12^(n+3)-30*9^(n+3)+27*8^(n+3)-2*3^(n+3))/540. [Yahia Kahloune, Jun 10 2013]

Mathematica

CoefficientList[Series[1/((1-3x)(1-8x)(1-9x)(1-12x)), {x, 0, 20}], x] (* or *) LinearRecurrence[{32, -363, 1692, -2592}, {1, 32, 661, 11228}, 20] (* Harvey P. Dale, Mar 18 2018 *)

Crossrefs

Sequence in context: A160270 A028102 A028143 * A028097 A028021 A028129

Adjacent sequences: A028098 A028099 A028100 * A028102 A028103 A028104

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved