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A107134
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Primes of the form x^2+28y^2.
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2
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29, 37, 53, 109, 113, 137, 149, 193, 197, 233, 277, 281, 317, 337, 373, 389, 401, 421, 449, 457, 541, 557, 569, 613, 617, 641, 653, 673, 701, 709, 757, 809, 821, 877, 953, 977, 1009, 1033, 1061, 1093, 1117, 1129, 1201, 1213, 1229, 1289, 1297, 1373, 1381
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OFFSET
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1,1
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COMMENTS
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Discriminant=-112. See A107132 for more information.
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LINKS
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FORMULA
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The primes are congruent to {1, 9, 25} (mod 28). - T. D. Noe, Apr 29 2008
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MATHEMATICA
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QuadPrimes2[1, 0, 28, 10000] (* see A106856 *)
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PROG
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(Magma) [ p: p in PrimesUpTo(2000) | p mod 28 in {1, 9, 25} ]; // Vincenzo Librandi, Jul 23 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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