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A165944
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Primes of the form p^2 +3p + 1, where p is also a prime.
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1
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11, 19, 41, 71, 419, 599, 929, 1481, 1979, 2351, 2969, 3659, 4691, 13109, 19181, 19739, 25121, 27059, 30449, 32579, 53129, 57839, 66821, 69959, 86729, 98909, 122849, 125669, 129959, 140249, 144779, 176819, 202949, 219491, 250499, 254519
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OFFSET
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1,1
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COMMENTS
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LINKS
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MATHEMATICA
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Select[Table[p^2 + 3 p + 1, {p, Prime[Range[300]]}], PrimeQ] (* Vincenzo Librandi, Jun 13 2014 *)
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PROG
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(Magma) [a: p in PrimesInInterval(1, 1000) | IsPrime(a) where a is (p^2 + 3*p + 1)]; // Vincenzo Librandi, Jun 13 2014
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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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