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%I #18 Feb 10 2017 12:18:20
%S 3,23,71,131,167,239,443,587,599,683,1163,1223,1319,1427,1451,1499,
%T 1559,1619,1979,2027,2099,2243,2339,2447,2543,2579,2663,2927,3083,
%U 3167,3251,3347,3359,3371,3491,3623,3659,3767,3911,4079,4463,4583
%N Primes of the form 3x^2+23y^2.
%C Discriminant=-276. See A107132 for more information.
%H Vincenzo Librandi and Ray Chandler, <a href="/A107177/b107177.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[3, 0, 23, 10000] (* see A106856 *)
%o (PARI) list(lim)=my(v=List(),w,t); for(x=0, sqrtint(lim\3), w=3*x^2; for(y=0, sqrtint((lim-w)\23), if(isprime(t=w+23*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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