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Search: id:A106986
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| A106986 |
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Primes of the form 5x^2+3xy+5y^2, with x and y any integers. |
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+0
1
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| 5, 7, 13, 19, 31, 41, 47, 59, 73, 83, 89, 97, 167, 223, 227, 229, 241, 271, 293, 307, 349, 353, 383, 397, 409, 461, 479, 509, 577, 587, 593, 619, 643, 661, 691, 733, 761, 769, 773, 787, 811, 839, 853, 929, 941, 983, 1021, 1097, 1123, 1151, 1181, 1217
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-91. See A106856 for more information.
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MATHEMATICA
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Union[QuadPrimes[5, 3, 5, 10000], QuadPrimes[5, -3, 5, 10000]] (* see A106856 *)
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CROSSREFS
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Sequence in context: A153116 A099349 A167464 this_sequence A006512 A074304 A072677
Adjacent sequences: A106983 A106984 A106985 this_sequence A106987 A106988 A106989
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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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