OFFSET
1,1
REFERENCES
David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989.
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
Primes congruent to {1, 25, 49, 61, 73, 85, 121, 157, 169} (mod 228). - T. D. Noe, Apr 29 2008
MATHEMATICA
QuadPrimes2[1, 0, 57, 10000] (* see A106856 *)
With[{nn=50}, Take[Union[Select[#[[1]]+57#[[2]]&/@(Tuples[Range[nn], 2]^2), PrimeQ]], nn]] (* Harvey P. Dale, Jun 17 2014 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved