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Search: id:A139949
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| A139949 |
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Primes of the form 2x^2+2xy+193y^2. |
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+0
2
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| 2, 193, 197, 233, 277, 337, 373, 457, 557, 613, 673, 877, 953, 1033, 1117, 1297, 1493, 1597, 1733, 1877, 1913, 1933, 1997, 2053, 2153, 2213, 2417, 2437, 2657, 2713, 2837, 2857, 3137, 3313, 3593, 3637, 4153, 4253, 4397, 4517, 4813, 4817
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-1540. See A139827 for more information.
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FORMULA
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The primes are congruent to {2, 57, 193, 197, 233, 277, 337, 373, 393, 417, 457, 513, 557, 613, 673, 813, 877, 893, 897, 953, 1033, 1073, 1117, 1157, 1173, 1297, 1317, 1437, 1493, 1513, 1537} (mod 1540).
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CROSSREFS
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Sequence in context: A142890 A103404 A064682 this_sequence A103429 A143659 A123100
Adjacent sequences: A139946 A139947 A139948 this_sequence A139950 A139951 A139952
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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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