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A139874
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Primes of the form 3x^2+56y^2.
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2
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3, 59, 83, 131, 227, 251, 419, 467, 563, 587, 971, 1091, 1259, 1307, 1427, 1571, 1811, 1907, 1931, 1979, 2099, 2243, 2267, 2411, 2579, 2819, 2939, 3083, 3251, 3323, 3491, 3659, 3779, 3923, 3947, 4091, 4259, 4283, 4451, 4787, 4931, 5003
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Discriminant=-672. See A139827 for more information.
Except for 3, also primes of the form 20x^2+12xy+27y^2. See A140633. - T. D. Noe (noe(AT)sspectra.com), May 19 2008
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FORMULA
| Except for 3, the primes are congruent to {59, 83, 131} (mod 168).
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MATHEMATICA
| QuadPrimes[3, 0, 56, 10000] (* see A106856 *)
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CROSSREFS
| Sequence in context: A184950 A100611 A139882 * A155032 A107212 A002148
Adjacent sequences: A139871 A139872 A139873 * A139875 A139876 A139877
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KEYWORD
| nonn,easy
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AUTHOR
| T. D. Noe (noe(AT)sspectra.com), May 02 2008
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