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A025835
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Expansion of 1/((1-x^3)(1-x^5)(1-x^6)).
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0
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1, 0, 0, 1, 0, 1, 2, 0, 1, 2, 1, 2, 3, 1, 2, 4, 2, 3, 5, 2, 4, 6, 3, 5, 7, 4, 6, 8, 5, 7, 10, 6, 8, 11, 7, 10, 13, 8, 11, 14, 10, 13, 16, 11, 14, 18, 13, 16, 20, 14, 18, 22, 16, 20, 24, 18, 22, 26, 20, 24, 29, 22, 26, 31, 24, 29
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OFFSET
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0,7
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LINKS
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Index entries for linear recurrences with constant coefficients, signature (0, 0, 1, 0, 1, 1, 0, -1, -1, 0, -1, 0, 0, 1).
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FORMULA
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a(0)=1, a(1)=0, a(2)=0, a(3)=1, a(4)=0, a(5)=1, a(6)=2, a(7)=0, a(8)=1, a(9)=2, a(10)=1, a(11)=2, a(12)=3, a(13)=1, a(n)=a(n-3)+a(n-5)+ a(n-6)-a(n-8)- a(n-9)-a(n-11)+a(n-14). - Harvey P. Dale, Jun 09 2015
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MATHEMATICA
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CoefficientList[Series[1/((1-x^3)(1-x^5)(1-x^6)), {x, 0, 90}], x] (* or *) LinearRecurrence[ {0, 0, 1, 0, 1, 1, 0, -1, -1, 0, -1, 0, 0, 1}, {1, 0, 0, 1, 0, 1, 2, 0, 1, 2, 1, 2, 3, 1}, 90] (* Harvey P. Dale, Jun 09 2015 *)
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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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