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A028105
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Expansion of 1/((1-3x)(1-9x)(1-10x)(1-11x)).
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1
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1, 33, 700, 12150, 187951, 2698923, 36799570, 483082800, 6161352901, 76830423813, 940920228040, 11355049670250, 135378462029851, 1597705036844703, 18694490136746110, 217145575509718500
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OFFSET
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0,2
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 0..200
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FORMULA
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a(n) = (21*11^(n+3)-48*10^(n+3)+28*9^(n+3)-3^(n+3))/336. [Yahia Kahloune, Jun 11 2013]
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MATHEMATICA
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CoefficientList[Series[1 / ((1 - 3 x) (1 - 9 x) (1 - 10 x) (1 - 11 x)), {x, 0, 20}], x] (* Vincenzo Librandi, Jul 11 2013 *)
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CROSSREFS
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Sequence in context: A028157 A028178 A028153 * A028103 A028144 A028098
Adjacent sequences: A028102 A028103 A028104 * A028106 A028107 A028108
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane.
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STATUS
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approved
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