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A023956
Expansion of 1/((1-x)(1-6x)(1-8x)(1-11x)).
1
1, 26, 449, 6502, 85581, 1063194, 12725545, 148560206, 1704811493, 19330213474, 217323204033, 2428517447382, 27020001684157, 299686169462186, 3316371108572633, 36639232372189150, 404308142849091093
OFFSET
0,2
FORMULA
a(n) = (7*11^(n+3) - 25*8^(n+3) + 21*6^(n+3) - 3)/1050. [Yahia Kahloune, Jun 29 2013]
MATHEMATICA
CoefficientList[Series[1 / ((1 - x) (1 - 6 x) (1 - 8 x) (1 - 11 x)), {x, 0, 20}], x] (* Vincenzo Librandi, Jul 16 2013 *)
CROSSREFS
Sequence in context: A331881 A024170 A028042 * A025981 A025996 A023540
KEYWORD
nonn,easy
AUTHOR
STATUS
approved