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A139663
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Primes of the form x^2+520y^2.
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1
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521, 569, 601, 641, 809, 881, 1049, 1249, 1361, 1481, 1609, 1889, 2081, 2089, 2129, 2161, 2441, 2521, 2609, 2729, 3041, 3121, 3169, 3329, 3449, 3761, 3769, 3929, 4001, 4241, 4289, 4481, 4729, 4801, 4889, 4969, 5009, 5209, 5281, 5521, 5641
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Discriminant=-2080. See A139643 for more information.
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FORMULA
| The primes are congruent to {1, 9, 49, 81, 121, 129, 209, 289, 321, 329, 361, 441} (mod 520).
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MATHEMATICA
| QuadPrimes[1, 0, 520, 10000] (* see A106856 *)
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CROSSREFS
| Sequence in context: A178269 A183588 A168220 * A146340 A146362 A050966
Adjacent sequences: A139660 A139661 A139662 * A139664 A139665 A139666
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KEYWORD
| nonn,easy
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AUTHOR
| T. D. Noe (noe(AT)sspectra.com), Apr 29 2008
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