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A140008 Primes of the form 24x^2+55y^2. 2
79, 151, 271, 439, 919, 1231, 1399, 1471, 1759, 1999, 2239, 2551, 2719, 2791, 3079, 3319, 3511, 3559, 4111, 4231, 4639, 4759, 4831, 5431, 6079, 6151, 6199, 6679, 6871, 6991, 7039, 8191, 8311, 8599, 8719, 8839, 9151, 9319, 9391, 9511, 9631 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Discriminant = -5280. See A139827 for more information.

Also primes of the form 39x^2+36xy+76y^2. See A140633. - T. D. Noe, May 19 2008

LINKS

Vincenzo Librandi and Ray Chandler, Table of n, a(n) for n = 1..10000 [First 1000 terms from Vincenzo Librandi]

N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)

FORMULA

The primes are congruent to {79, 151, 271, 391, 439, 679, 799, 871, 919, 1231} (mod 1320).

MATHEMATICA

QuadPrimes2[24, 0, 55, 10000] (* see A106856 *)

PROG

(MAGMA) [p: p in PrimesUpTo(12000) | p mod 1320 in [79, 151, 271, 391, 439, 679, 799, 871, 919, 1231]]; // Vincenzo Librandi, Aug 04 2012

CROSSREFS

Sequence in context: A029703 A142082 A031890 * A142159 A046050 A044330

Adjacent sequences:  A140005 A140006 A140007 * A140009 A140010 A140011

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 02 2008

STATUS

approved

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Last modified March 23 05:36 EDT 2019. Contains 321422 sequences. (Running on oeis4.)