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A016900
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a(n) = (5*n + 4)^4.
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1
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256, 6561, 38416, 130321, 331776, 707281, 1336336, 2313441, 3748096, 5764801, 8503056, 12117361, 16777216, 22667121, 29986576, 38950081, 49787136, 62742241, 78074896, 96059601, 116985856, 141158161
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listen;
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text;
internal format)
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OFFSET
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0,1
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LINKS
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FORMULA
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a(n) = 5*a(n-1) - 10*a(n-2) + 10*a(n-3) - 5*a(n-4) + a(n-5).
G.f.: (256 + 5281*x + 8171*x^2 + 1291*x^3 + x^4)/(1 - x)^5. (End)
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MAPLE
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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