A028097 Expansion of 1/((1-3x)(1-7x)(1-10x)(1-12x)).

1, 32, 663, 11326, 173753, 2492676, 34193851, 454583162, 5907650925, 75488944960, 952332965519, 11896112035158, 147458730765217, 1816728187188284, 22274159313106467, 272032430647628914

Offset

0,2

Links

Harvey P. Dale, Table of n, a(n) for n = 0..925

Index entries for linear recurrences with constant coefficients, signature (32,-361,1662,-2520).

Formula

a(n)=(7*12^(n+4)-18*10^(n+4)+18*7^(n+4)-10*3^(n+4))/7560. [Yahia Kahloune, Jun 10 2013]

Mathematica

CoefficientList[Series[1/((1-3x)(1-7x)(1-10x)(1-12x)), {x, 0, 20}], x] (* or *) LinearRecurrence[{32, -361, 1662, -2520}, {1, 32, 663, 11326}, 20] (* Harvey P. Dale, Apr 26 2017 *)

Crossrefs

Sequence in context: A028102 A028143 A028101 * A028021 A028129 A028088

Adjacent sequences: A028094 A028095 A028096 * A028098 A028099 A028100

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved