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A028013
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Expansion of 1/((1-2x)(1-7x)(1-10x)(1-12x)).
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0
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1, 31, 629, 10595, 160965, 2293347, 31302517, 414606643, 5373114725, 68512221635, 862890573909, 10764894286419, 133300183232581, 1640952361357795, 20105879474257205, 245421711656823923
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OFFSET
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0,2
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LINKS
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FORMULA
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a(0)=1, a(1)=31, a(2)=629, a(3)=10595, a(n)=31*a(n-1)- 332*a(n-2)+ 1388*a(n-3)-1680*a(n-4) [From Harvey P. Dale, Nov 02 2011]
a(n)=(12^(n+4)-25*10^(n+3)+16*7^(n+3)-3*2^(n+3))/1200. [Yahia Kahloune, Jun 06 2013]
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MATHEMATICA
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CoefficientList[Series[1/((1-2x)(1-7x)(1-10x)(1-12x)), {x, 0, 30}], x] (* or *) LinearRecurrence[{31, -332, 1388, -1680}, {1, 31, 629, 10595}, 30] (* Harvey P. Dale, Nov 02 2011 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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