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A139866 Primes of the form 13x^2+12xy+13y^2. 1
13, 41, 89, 97, 173, 181, 241, 257, 269, 293, 409, 433, 509, 521, 601, 661, 677, 773, 797, 829, 857, 941, 1021, 1097, 1153, 1181, 1193, 1237, 1249, 1321, 1361, 1433, 1553, 1609, 1637, 1693, 1741, 1777, 1861, 1889, 2029, 2089, 2141, 2161, 2273 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-532. See A139827 for more information.

FORMULA

The primes are congruent to {13, 33, 41, 69, 89, 97, 117, 129, 145, 173, 181, 185, 241, 257, 265, 269, 293, 297, 325, 341, 369, 409, 433, 489, 493, 509, 521} (mod 532).

MATHEMATICA

Union[QuadPrimes[13, 12, 13, 10000], QuadPrimes[13, -12, 13, 10000]] (* see A106856 *)

CROSSREFS

Sequence in context: A004624 A045473 A102083 * A026918 A123972 A167585

Adjacent sequences:  A139863 A139864 A139865 * A139867 A139868 A139869

KEYWORD

nonn,easy

AUTHOR

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

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.