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Search: id:A106906
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| A106906 |
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Primes of the form 2x^2-2xy+7y^2, with x and y nonnegative. |
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+0
3
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| 2, 7, 11, 19, 31, 47, 59, 67, 71, 83, 151, 163, 167, 223, 227, 239, 271, 307, 331, 359, 379, 383, 431, 463, 479, 487, 499, 587, 619, 631, 643, 683, 691, 739, 743, 787, 811, 827, 839, 863, 947, 967, 983, 1019, 1051, 1087, 1103, 1123, 1151, 1163, 1259, 1279
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-52. See A106856 for more information.
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FORMULA
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The primes are congruent to {2, 7, 11, 15, 19, 31, 47} (mod 52). - T. D. Noe (noe(AT)sspectra.com), May 02 2008
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CROSSREFS
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Cf. A139827.
Sequence in context: A060191 A023393 A084619 this_sequence A106905 A103802 A097159
Adjacent sequences: A106903 A106904 A106905 this_sequence A106907 A106908 A106909
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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 09 2005
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