%I #18 Feb 10 2017 14:42:55
%S 109,337,373,457,613,709,757,877,1117,1297,1381,1453,1597,1873,1933,
%T 2017,2221,2269,2293,2389,2437,2713,3049,3061,3109,3313,3361,3469,
%U 4057,4153,4561,4909,4957,5077,5233,5413,5569,5581,5737,5821,6217
%N Primes of the form x^2 + 84y^2.
%C Discriminant = -336. See A107132 for more information.
%H Vincenzo Librandi and Ray Chandler, <a href="/A107198/b107198.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi]
%H N. J. A. Sloane et al., <a href="https://oeis.org/wiki/Binary_Quadratic_Forms_and_OEIS">Binary Quadratic Forms and OEIS</a> (Index to related sequences, programs, references)
%t QuadPrimes2[1, 0, 84, 10000] (* see A106856 *)
%o (PARI) list(lim)=my(v=List(),w,t); for(x=1, sqrtint(lim\1), w=x^2; for(y=1, sqrtint((lim-w)\84), if(isprime(t=w+84*y^2), listput(v,t)))); Set(v) \\ _Charles R Greathouse IV_, Feb 10 2017
%K nonn,easy
%O 1,1
%A _T. D. Noe_, May 13 2005
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