%I #21 Aug 05 2014 14:16:29
%S 3,17,37,71,79,101,103,149,239,241,251,271,277,307,347,383,397,401,
%T 457,571,617,653,659,661,733,769,773,811,853,863,929,1019,1051,1061,
%U 1097,1109,1123,1153,1187,1223,1249,1259,1283,1297,1301,1303,1381
%N Primes of the form 3x^2+xy+4y^2.
%C Discriminant=-47.
%H Vincenzo Librandi and Ray Chandler, <a href="/A106895/b106895.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 Union[QuadPrimes2[3, 1, 4, 10000], QuadPrimes2[3, -1, 4, 10000]] (* see A106856 *)
%Y Primes in A243653.
%K nonn,easy
%O 1,1
%A _T. D. Noe_, May 09 2005