The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #17 Aug 05 2014 14:16:29
%S 2,7,11,19,31,47,67,71,83,151,223,227,239,271,307,359,379,383,431,463,
%T 479,487,499,587,619,631,643,683,691,739,743,839,863,947,967,983,1019,
%U 1051,1087,1151,1163,1259,1279,1307,1319,1367,1399,1423,1451,1471
%N Primes of the form 2x^2+2xy+7y^2, with x and y nonnegative.
%C Discriminant=-52.
%H Vincenzo Librandi and Ray Chandler, <a href="/A106905/b106905.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[2, 2, 7, 10000] (* see A106856 *)
%K nonn,easy
%O 1,1
%A _T. D. Noe_, May 09 2005