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Search: id:A139935
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| A139935 |
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Primes of the form 2x^2+2xy+173y^2. |
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+0
2
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| 2, 173, 197, 233, 257, 317, 353, 593, 653, 857, 1013, 1097, 1277, 1373, 1553, 1613, 1637, 1697, 1733, 1913, 1973, 2237, 2393, 2417, 2477, 2657, 2693, 2753, 2837, 2957, 3137, 3413, 3617, 3797, 4073, 4133, 4217, 4337, 4373, 4397, 4457, 4493
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-1380. See A139827 for more information.
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FORMULA
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The primes are congruent to {2, 77, 173, 197, 233, 257, 317, 353, 377, 473, 533, 593, 653, 737, 857, 1013, 1037, 1097, 1133, 1277, 1313, 1337, 1373} (mod 1380).
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MATHEMATICA
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QuadPrimes[2, -2, 173, 10000] (* see A106856 *)
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CROSSREFS
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Sequence in context: A157316 A007760 A051030 this_sequence A103427 A139942 A094221
Adjacent sequences: A139932 A139933 A139934 this_sequence A139936 A139937 A139938
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KEYWORD
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nonn,easy
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AUTHOR
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T. D. Noe (noe(AT)sspectra.com), May 02 2008
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