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A139947 Primes of the form 17x^2+21y^2. 0
17, 89, 101, 257, 293, 353, 461, 509, 593, 761, 773, 797, 1097, 1109, 1181, 1277, 1301, 1361, 1613, 1721, 1889, 1973, 2141, 2393, 2609, 2729, 2789, 2957, 3041, 3209, 3449, 3617, 3821, 4133, 4157, 4217, 4241, 4373, 4637, 4793, 4877, 4973 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-1428. See A139827 for more information.

FORMULA

The primes are congruent to {17, 89, 101, 185, 257, 293, 341, 353, 461, 509, 545, 593, 689, 713, 761, 773, 797, 965, 1097, 1109, 1181, 1277, 1301, 1361, 1385} (mod 1428).

MATHEMATICA

QuadPrimes[17, 0, 21, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A118533 A061679 A033654 * A162930 A138338 A200670

Adjacent sequences:  A139944 A139945 A139946 * A139948 A139949 A139950

KEYWORD

nonn,easy

AUTHOR

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

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Last modified February 14 00:26 EST 2012. Contains 205567 sequences.