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A139644 Primes of the form x^2+105y^2. +0
3
109, 421, 541, 709, 1009, 1129, 1201, 1381, 1429, 1549, 1621, 1789, 1801, 2221, 2269, 2389, 2521, 2689, 3049, 3061, 3109, 3229, 3301, 3361, 3469, 3529, 3889, 4201, 4561, 4621, 4729, 4789, 4909, 5209, 5569, 5581, 5749, 5821, 5881, 6301 (list; graph; listen)
OFFSET

1,1

COMMENT

Discriminant=-420. See A139643 for more information.

FORMULA

The primes are congruent to {1, 109, 121, 169, 289, 361} (mod 420).

CROSSREFS

Adjacent sequences: A139641 A139642 A139643 this_sequence A139645 A139646 A139647

Sequence in context: A107198 A020354 A142846 this_sequence A142640 A126856 A142915

KEYWORD

nonn,easy

AUTHOR

T. D. Noe (noe(AT)sspectra.com), Apr 29 2008

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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