A028134 Expansion of 1/((1-4x)(1-6x)(1-7x)(1-12x)).

1, 29, 543, 8401, 117383, 1545873, 19643191, 244174337, 2994192135, 36408715057, 440432748119, 5310970152033, 63918578839207, 768370553038481, 9230114440859127, 110830456328561089, 1330457511950281799, 15968985141074818545, 191652591219028933015

Offset

0,2

Links

Table of n, a(n) for n=0..18.

Index entries for linear recurrences with constant coefficients, signature (29,-298,1296,-2016).

Formula

a(n)=(12^(n+3)-16*7^(n+3)+20*6^(n+3)-5*4^(n+3))/240. [Yahia Kahloune, May 30 2013]

Mathematica

CoefficientList[Series[1/((1-4x)(1-6x)(1-7x)(1-12x)), {x, 0, 30}], x] (* Harvey P. Dale, Feb 02 2021 *)

Crossrefs

Sequence in context: A153816 A028091 A028125 * A028084 A028015 A028123

Adjacent sequences: A028131 A028132 A028133 * A028135 A028136 A028137

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved