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A139877
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Primes of the form 8x^2+21y^2.
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2
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29, 53, 149, 197, 317, 389, 557, 653, 701, 821, 1061, 1229, 1373, 1493, 1709, 1733, 1877, 1901, 1997, 2069, 2213, 2237, 2333, 2381, 2549, 2741, 2837, 2909, 3221, 3389, 3413, 3557, 3581, 3677, 3917, 4013, 4229, 4253, 4349, 4397, 4421, 4517
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OFFSET
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1,1
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COMMENTS
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Discriminant=-672. See A139827 for more information.
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LINKS
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FORMULA
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The primes are congruent to {29, 53, 149} (mod 168).
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MATHEMATICA
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QuadPrimes2[8, 0, 21, 10000] (* see A106856 *)
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PROG
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(Magma) [ p: p in PrimesUpTo(6000) | p mod 168 in {29, 53, 149}]; // Vincenzo Librandi, Jul 30 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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