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A163426
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Primes of the form ((p+1)/2)^3 + ((p-1)/2), p is prime.
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6
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29, 67, 349, 1009, 3389, 4111, 9281, 19709, 46691, 132701, 140659, 166429, 658589, 884831, 1000099, 1405039, 1520989, 1601729, 1728119, 2146817, 2460509, 2685757, 4574461, 7078079, 7880797, 10077911, 14887181, 23149409, 23393941, 27000299
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OFFSET
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1,1
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LINKS
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EXAMPLE
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((5+1)/2)^3 + ((5-1)/2) = 27 + 2 = 29;
((7+1)/2)^3 + ((7-1)/2) = 64 + 3 = 67.
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MATHEMATICA
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f[n_]:=((p+1)/2)^3+((p-1)/2); lst={}; Do[p=Prime[n]; If[PrimeQ[f[p]], AppendTo[lst, f[p]]], {n, 6!}]; lst
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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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EXTENSIONS
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STATUS
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approved
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