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A138436
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a(n) = ((n-th prime)^5-(n-th prime)^3)/8.
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2
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3, 27, 375, 2058, 19965, 46137, 176868, 308655, 803022, 2560845, 3574920, 8661663, 14473410, 18366117, 28655148, 52255827, 89339865, 105546165, 168728043, 225483930, 259085322, 384570420, 492308607, 697919310, 1073303448
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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^3)/8], {n, 1, 50}]; a
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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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