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A139941 Primes of the form 19x^2+8xy+19y^2. 1
19, 79, 199, 379, 571, 619, 631, 751, 919, 1171, 1279, 1399, 1459, 1471, 1579, 1699, 1759, 1831, 1951, 1999, 2011, 2131, 2179, 2251, 2311, 2551, 2659, 2719, 2731, 2851, 3079, 3271, 3319, 3331, 3391, 3511, 3559, 3631, 3691, 3931, 4099, 4111 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-1380. See A139827 for more information.

FORMULA

The primes are congruent to {19, 79, 91, 199, 319, 379, 451, 511, 559, 571, 619, 631, 751, 799, 871, 919, 931, 1111, 1171, 1279, 1339, 1351} (mod 1380).

MATHEMATICA

Union[QuadPrimes[19, 8, 19, 10000], QuadPrimes[19, -8, 19, 10000]] (* see A106856 *)

CROSSREFS

Sequence in context: A142789 A158491 A201783 * A127270 A053665 A050522

Adjacent sequences:  A139938 A139939 A139940 * A139942 A139943 A139944

KEYWORD

nonn,easy

AUTHOR

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

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Last modified February 15 23:34 EST 2012. Contains 205860 sequences.