A028014 Expansion of 1/((1-2x)(1-7x)(1-11x)(1-12x)).

1, 32, 671, 11686, 183561, 2702868, 38100595, 520688018, 6954616493, 91281855808, 1181868771447, 15136545033246, 192153235734097, 2421636122107052, 30334353203856827, 378040802156676970

Offset

0,2

Links

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

Index entries for linear recurrences with constant coefficients, signature (32,-353,1510,-1848).

Formula

a(n)=(18*12^(n+3)-25*11^(n+3)+9*7^(n+3)-2^(n+4))/900. [Yahia Kahloune, May 31 2013]

Mathematica

CoefficientList[Series[1/((1-2x)(1-7x)(1-11x)(1-12x)), {x, 0, 30}], x] (* or *) LinearRecurrence[{32, -353, 1510, -1848}, {1, 32, 671, 11686}, 30] (* Harvey P. Dale, Apr 11 2022 *)

Crossrefs

Sequence in context: A028129 A028088 A028019 * A240362 A025031 A025008

Adjacent sequences: A028011 A028012 A028013 * A028015 A028016 A028017

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved