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A138419
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a(n) = (prime(n)^4 - prime(n)^2)/3.
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3
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4, 24, 200, 784, 4840, 9464, 27744, 43320, 93104, 235480, 307520, 624264, 941360, 1138984, 1625824, 2629224, 4037960, 4614040, 6715544, 8468880, 9464304, 12981280, 15817144, 20911440, 29506624, 34683400, 37513424, 43689384
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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^4 - p^2)/3], {n, 1, 50}]; a
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PROG
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(Magma) [(NthPrime((n))^4 - NthPrime((n))^2)/3: n in [1..30] ]; // Vincenzo Librandi, Jun 17 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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