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A017140
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a(n) = (8*n+6)^4.
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2
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1296, 38416, 234256, 810000, 2085136, 4477456, 8503056, 14776336, 24010000, 37015056, 54700816, 78074896, 108243216, 146410000, 193877776, 252047376, 322417936, 406586896, 506250000, 623201296
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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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G.f.: ( -1296-31936*x-55136*x^2-9920*x^3-16*x^4 ) / (x-1)^5. - R. J. Mathar, Aug 26 2015
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MATHEMATICA
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(8*Range[0, 20]+6)^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {1296, 38416, 234256, 810000, 2085136}, 20] (* Harvey P. Dale, Sep 21 2021 *)
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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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