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Search: id:A139985
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| A139985 |
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Primes of the form 4x^2+4xy+211y^2. |
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+0
1
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| 211, 331, 379, 499, 571, 739, 1051, 1171, 1579, 2011, 2179, 2251, 2731, 2851, 3019, 3259, 3571, 3691, 3739, 3931, 4099, 5419, 5779, 6091, 6211, 6379, 6451, 6619, 7219, 7459, 8059, 8731, 8779, 8971, 9619, 9739, 9811, 10459, 10651, 11131, 11251
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-3360. See A139827 for more information.
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FORMULA
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The primes are congruent to {211, 331, 379, 499, 571, 739} (mod 840).
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MATHEMATICA
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QuadPrimes[4, -4, 211, 10000] (* see A106856 *)
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CROSSREFS
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Sequence in context: A137871 A142582 A139651 this_sequence A132248 A142901 A142168
Adjacent sequences: A139982 A139983 A139984 this_sequence A139986 A139987 A139988
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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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