OFFSET
1,1
COMMENTS
Discriminant = -228. See A107132 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 {3, 19, 31, 67, 79, 91, 103, 127, 151, 211, 223} (mod 228). - T. D. Noe, May 02 2008
MATHEMATICA
QuadPrimes2[3, 0, 19, 10000] (* see A106856 *)
PROG
(Magma) [p: p in PrimesUpTo(3000) | p mod 228 in [3, 19, 31, 67, 79, 91, 103, 127, 151, 211, 223]]; // Vincenzo Librandi, Jul 25 2012
(PARI) list(lim)=my(v=List([3]), s=[19, 31, 67, 79, 91, 103, 127, 151, 211, 223]); forprime(p=19, lim, if(setsearch(s, p%228), listput(v, p))); Vec(v) \\ Charles R Greathouse IV, Feb 10 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 13 2005
STATUS
approved