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A106893
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Primes of the form 3x^2-2xy+4y^2, with x and y nonnegative.
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2
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3, 5, 31, 59, 67, 71, 97, 137, 181, 223, 229, 251, 313, 353, 367, 383, 443, 449, 463, 467, 521, 619, 631, 641, 647, 653, 661, 691, 719, 727, 797, 829, 839, 947, 977, 1013, 1039, 1049, 1061, 1093, 1103, 1213, 1303, 1321, 1409, 1453, 1483, 1499, 1511
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OFFSET
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1,1
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COMMENTS
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Discriminant=-44.
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LINKS
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MATHEMATICA
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QuadPrimes2[3, -2, 4, 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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