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Search: id:A139835
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| A139835 |
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Primes of the form 2x^2+2xy+43y^2. |
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+0
2
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| 2, 43, 47, 67, 83, 103, 127, 223, 263, 307, 383, 443, 463, 467, 523, 563, 587, 647, 727, 863, 883, 967, 1063, 1087, 1103, 1123, 1223, 1283, 1307, 1327, 1427, 1447, 1483, 1487, 1543, 1583, 1607, 1667, 1747, 1783, 1787, 1823, 1987, 2027, 2083
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-340. See A139827 for more information.
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FORMULA
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The primes are congruent to {2, 43, 47, 67, 83, 87, 103, 123, 127, 183, 203, 223, 247, 263, 287, 307, 327} (mod 340).
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MATHEMATICA
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QuadPrimes[2, -2, 43, 10000] (* see A106856 *)
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CROSSREFS
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Sequence in context: A052078 A069544 A085460 this_sequence A137415 A090194 A107200
Adjacent sequences: A139832 A139833 A139834 this_sequence A139836 A139837 A139838
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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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