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A138435
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a(n) = ((n-th prime)^5-(n-th prime)^3)/6.
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3
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4, 36, 500, 2744, 26620, 61516, 235824, 411540, 1070696, 3414460, 4766560, 11548884, 19297880, 24488156, 38206864, 69674436, 119119820, 140728220, 224970724, 300645240, 345447096, 512760560, 656411476, 930559080, 1431071264
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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)/6], {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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