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A139835 Primes of the form 2x^2+2xy+43y^2. 1
2, 43, 47, 67, 83, 103, 127, 223, 263, 307, 383, 443, 463, 467, 523, 563, 587, 647, 727, 863, 883, 967, 1063, 1087, 1103, 1123, 1223, 1283, 1307, 1327, 1427, 1447, 1483, 1487, 1543, 1583, 1607, 1667, 1747, 1783, 1787, 1823, 1987, 2027, 2083 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-340. See A139827 for more information.

FORMULA

The primes are congruent to {2, 43, 47, 67, 83, 87, 103, 123, 127, 183, 203, 223, 247, 263, 287, 307, 327} (mod 340).

MATHEMATICA

QuadPrimes[2, -2, 43, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A052078 A069544 A085460 * A137415 A090194 A107200

Adjacent sequences:  A139832 A139833 A139834 * A139836 A139837 A139838

KEYWORD

nonn,easy

AUTHOR

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

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Last modified February 14 15:31 EST 2012. Contains 205634 sequences.