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A106878
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Primes of the form 3x^2+xy+3y^2.
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4
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3, 5, 7, 13, 17, 47, 73, 83, 97, 103, 157, 167, 173, 223, 227, 257, 283, 293, 307, 313, 353, 367, 383, 397, 433, 467, 503, 523, 563, 577, 587, 593, 607, 643, 647, 677, 727, 733, 773, 787, 797, 853, 857, 887, 937, 983, 997, 1013, 1063, 1097, 1123, 1153
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OFFSET
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1,1
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COMMENTS
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Discriminant=-35.
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LINKS
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MATHEMATICA
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Union[QuadPrimes2[3, 1, 3, 10000], QuadPrimes2[3, -1, 3, 10000]] (* see A106856 *)
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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