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A138427
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a(n) = (prime(n)^5 - prime(n))/6.
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3
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5, 40, 520, 2800, 26840, 61880, 236640, 412680, 1072720, 3418520, 4771520, 11557320, 19309360, 24501400, 38224160, 69699240, 119154040, 140766040, 225020840, 300704880, 345511920, 512842720, 656506760, 930676560, 1431223360
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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a = {}; Do[p = Prime[n]; AppendTo[a, (p^5 - p)/6], {n, 1, 50}]; a
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PROG
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(Magma) [(NthPrime((n))^5 - NthPrime((n)))/6: n in [1..30]]; // Vincenzo Librandi, Jun 18 2011
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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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