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A017068
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a(n) = (8*n)^4.
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1
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0, 4096, 65536, 331776, 1048576, 2560000, 5308416, 9834496, 16777216, 26873856, 40960000, 59969536, 84934656, 116985856, 157351936, 207360000, 268435456, 342102016, 429981696, 533794816, 655360000
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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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G.f.: -4096*x*(1+x)*(x^2 + 10*x + 1)/(x-1)^5. - R. J. Mathar, Jul 14 2016
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MATHEMATICA
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(8*Range[0, 20])^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {0, 4096, 65536, 331776, 1048576}, 30] (* Harvey P. Dale, Aug 16 2016 *)
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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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