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A177105
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Primes of the form 2*n^3-1.
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2
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53, 127, 431, 1999, 8191, 18521, 27647, 31249, 59581, 78607, 159013, 194671, 314927, 332749, 390223, 453961, 524287, 657017, 1062881, 1457999, 1507141, 1608713, 1940597, 2519423, 3455999, 4000751, 4393999, 5371237, 5606441
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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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PROG
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(Magma) [a: n in [0..250] | IsPrime(a) where a is (2*n^3-1)];
(PARI) for(n=0, 200, if(isprime(k=2*n^3-1), print1(k", "))); // Vincenzo Librandi, Jul 25 2012
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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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