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A127919
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1/3 of product of three numbers: the n-th prime, the previous number and the following number.
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9
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2, 8, 40, 112, 440, 728, 1632, 2280, 4048, 8120, 9920, 16872, 22960, 26488, 34592, 49608, 68440, 75640, 100232, 119280, 129648, 164320, 190568, 234960, 304192, 343400, 364208, 408312, 431640, 480928, 682752, 749320, 857072, 895160, 1102600
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OFFSET
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1,1
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COMMENTS
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Number of irreducible monic cubic polynomials over GF(prime(n)). - Robert Israel, Jan 06 2015
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LINKS
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FORMULA
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MAPLE
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seq((ithprime(n)^3 - ithprime(n))/3, n=1..100); # Robert Israel, Jan 06 2015
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MATHEMATICA
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Table[(Prime[n] + 1) Prime[n] (Prime[n] - 1)/3, {n, 100}]
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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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