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Search: id:A139883
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| A139883 |
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Primes of the form 6x^2+6xy+31y^2. |
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+0
2
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| 31, 43, 67, 103, 151, 211, 283, 367, 463, 571, 691, 739, 751, 811, 823, 859, 919, 967, 991, 1123, 1171, 1279, 1291, 1399, 1447, 1459, 1471, 1483, 1531, 1567, 1627, 1663, 1699, 1783, 1831, 1867, 1879, 1987, 1999, 2083, 2179, 2239, 2311, 2371, 2383
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-708. See A139827 for more information.
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FORMULA
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The primes are congruent to {31, 43, 55, 67, 91, 103, 115, 151, 187, 211, 235, 247, 259, 283, 319, 367, 391, 415, 427, 451, 463, 511, 571, 583, 655, 667, 679, 691, 703} (mod 708).
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CROSSREFS
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Sequence in context: A069455 A118637 A096163 this_sequence A060834 A060844 A112789
Adjacent sequences: A139880 A139881 A139882 this_sequence A139884 A139885 A139886
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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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