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A106918
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Primes of the form 3x^2+xy+5y^2, with x and y nonnegative.
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2
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3, 5, 19, 53, 167, 181, 193, 257, 263, 271, 281, 293, 307, 331, 359, 379, 449, 487, 523, 557, 607, 617, 619, 761, 829, 883, 911, 947, 997, 1031, 1049, 1187, 1231, 1303, 1433, 1487, 1523, 1549, 1553, 1667, 1669, 1759, 1811, 1889, 1933, 1973, 1993
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OFFSET
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1,1
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COMMENTS
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Discriminant=-59.
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LINKS
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Vincenzo Librandi and Ray Chandler, Table of n, a(n) for n = 1..10000 [First 1000 terms from Vincenzo Librandi]
N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)
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MATHEMATICA
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QuadPrimes2[3, 1, 5, 10000] (* see A106856 *)
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CROSSREFS
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Sequence in context: A148547 A127998 A174132 * A182357 A181519 A265778
Adjacent sequences: A106915 A106916 A106917 * A106919 A106920 A106921
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KEYWORD
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nonn,easy
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AUTHOR
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T. D. Noe, May 09 2005
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STATUS
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approved
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