A028106 Expansion of 1/((1-3x)(1-9x)(1-10x)(1-12x)).

1, 34, 745, 13390, 214981, 3211234, 45646225, 626042230, 8359948861, 109374928234, 1408284704905, 17904343620670, 225325039105141, 2812442423778034, 34869043816790785, 429934709807000710

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Formula

a(n) = (7*12^(n+3)-27*10^(n+3)+21*9^(n+3)-3^(n+3))/378. - Yahia Kahloune, May 29 2013

Mathematica

CoefficientList[Series[1 / ((1 - 3 x) (1 - 9 x) (1 - 10 x) (1 - 12 x)), {x, 0, 20}], x] (* Vincenzo Librandi, Jul 11 2013 *)

Crossrefs

Sequence in context: A028159 A028179 A028154 * A028104 A295050 A295378

Adjacent sequences: A028103 A028104 A028105 * A028107 A028108 A028109

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved