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A139839 Primes of the form 2x^2+2xy+47y^2. 1
2, 47, 59, 71, 107, 131, 191, 227, 311, 359, 419, 431, 443, 467, 479, 503, 563, 599, 659, 683, 839, 887, 971, 1031, 1103, 1151, 1163, 1187, 1223, 1259, 1307, 1427, 1451, 1523, 1559, 1583, 1619, 1787, 1823, 1847, 1907, 1931, 2003, 2087, 2267 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-372. See A139827 for more information.

FORMULA

The primes are congruent to {2, 35, 47, 59, 71, 95, 107, 131, 143, 191, 227, 287, 299, 311, 335, 359} (mod 372).

MATHEMATICA

QuadPrimes[2, -2, 47, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A195877 A141579 A107205 * A118104 A107211 A069548

Adjacent sequences:  A139836 A139837 A139838 * A139840 A139841 A139842

KEYWORD

nonn,easy

AUTHOR

T. D. Noe (noe(AT)sspectra.com), May 02 2008

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Last modified February 17 13:28 EST 2012. Contains 206031 sequences.