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A107166
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Primes of the form 2x^2 + 29y^2.
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2
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2, 29, 31, 37, 47, 61, 79, 101, 127, 157, 191, 229, 263, 269, 271, 293, 311, 317, 359, 367, 389, 421, 461, 479, 503, 541, 599, 607, 653, 677, 727, 733, 743, 751, 757, 773, 797, 823, 829, 839, 853, 887, 911, 967, 983, 997, 1013, 1061, 1063, 1087, 1117
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OFFSET
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1,1
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COMMENTS
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Discriminant = -232. See A107132 for more information.
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LINKS
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FORMULA
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The primes are congruent to {2, 15, 21, 29, 31, 37, 39, 47, 55, 61, 69, 77, 79, 85, 95, 101, 119, 127, 133, 135, 143, 157, 159, 189, 191, 205, 213, 215, 221, 229} (mod 232). - T. D. Noe, May 02 2008
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MATHEMATICA
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QuadPrimes2[2, 0, 29, 10000] (* see A106856 *)
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PROG
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(Magma) [ p: p in PrimesUpTo(2000) | p mod 232 in {2, 15, 21, 29, 31, 37, 39, 47, 55, 61, 69, 77, 79, 85, 95, 101, 119, 127, 133, 135, 143, 157, 159, 189, 191, 205, 213, 215, 221, 229} ]; // Vincenzo Librandi, Jul 25 2012
(PARI) list(lim)=my(v=List([2]), s=[15, 21, 29, 31, 37, 39, 47, 55, 61, 69, 77, 79, 85, 95, 101, 119, 127, 133, 135, 143, 157, 159, 189, 191, 205, 213, 215, 221, 229]); forprime(p=29, lim, if(setsearch(s, p%232), listput(v, p))); Vec(v) \\ Charles R Greathouse IV, Feb 10 2017
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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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