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A139849 Primes of the form 10x^2+10xy+13y^2. 0
13, 73, 97, 157, 313, 397, 433, 577, 733, 853, 937, 997, 1153, 1237, 1657, 1693, 1753, 1777, 1993, 2113, 2593, 2617, 2677, 2833, 2917, 2953, 3037, 3253, 3373, 3433, 3457, 3517, 3673, 3793, 3853, 3877, 4093, 4177, 4273, 4297, 4357, 4513 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-420. See A139827 for more information.

FORMULA

The primes are congruent to {13, 73, 97, 157, 313, 397} (mod 420).

MATHEMATICA

QuadPrimes[10, -10, 13, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A189605 A000470 A107141 * A139911 A097460 A138353

Adjacent sequences:  A139846 A139847 A139848 * A139850 A139851 A139852

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.