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A028131
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Expansion of 1/((1-4x)(1-6x)(1-7x)(1-9x)).
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0
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1, 26, 429, 5746, 68285, 751842, 7859293, 79189682, 776807229, 7469674498, 70755237917, 662574315858, 6150105857533, 56698559685794, 519954841569501, 4748676612377074, 43230125518942397, 392566127341918530
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OFFSET
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0,2
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LINKS
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Table of n, a(n) for n=0..17.
Index entries for linear recurrences with constant coefficients, signature (26,-247,1014,-1512).
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FORMULA
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a(n) = (9^(n+3)-5*7^(n+3)+5*6^(n+3)-4^(n+3))/30. - Yahia Kahloune, Jun 02 2013
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MATHEMATICA
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CoefficientList[Series[1/((1-4x)(1-6x)(1-7x)(1-9x)), {x, 0, 30}], x] (* Harvey P. Dale, Jan 20 2019 *)
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CROSSREFS
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Sequence in context: A197087 A028165 A218896 * A028120 A028079 A028117
Adjacent sequences: A028128 A028129 A028130 * A028132 A028133 A028134
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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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