%I #20 Aug 05 2014 14:16:29
%S 3,29,89,103,109,151,157,191,271,379,409,419,499,503,557,587,593,613,
%T 659,677,787,853,857,977,1031,1069,1103,1181,1193,1237,1297,1321,1493,
%U 1523,1531,1571,1619,1637,1657,1693,1723,1787,1871,1873,1949,1993
%N Primes of the form 3x^2+xy+6y^2, with x and y any integer.
%C Discriminant=-71.
%H Vincenzo Librandi and Ray Chandler, <a href="/A106943/b106943.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, 6, 10000], QuadPrimes2[3, -1, 6, 10000]] (* see A106856 *)
%K nonn,easy
%O 1,1
%A _T. D. Noe_, May 09 2005
|