OFFSET
1,1
COMMENTS
Discriminant = -660. See A139827 for more information.
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 {13, 73, 193, 217, 277, 337, 373, 457, 613, 637} (mod 660).
MATHEMATICA
Union[QuadPrimes2[13, 4, 13, 10000], QuadPrimes2[13, -4, 13, 10000]] (* see A106856 *)
PROG
(Magma) [ p: p in PrimesUpTo(6000) | p mod 660 in {13, 73, 193, 217, 277, 337, 373, 457, 613, 637}]; // Vincenzo Librandi, Jul 30 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 02 2008
STATUS
approved