A106944 - OEIS

%I #17 Aug 05 2014 14:16:29

%S 3,89,151,157,379,419,593,659,677,787,853,857,977,1069,1103,1181,1297,

%T 1493,1523,1531,1571,1723,1787,1871,1993,2131,2383,2441,2503,2543,

%U 2647,2833,2897,2927,3011,3019,3527,3631,3779,3923,4001,4021,4057

%N Primes of the form 3x^2-xy+6y^2, with x and y nonnegative.

%C Discriminant=-71.

%H Vincenzo Librandi and Ray Chandler, <a href="/A106944/b106944.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, -1, 6, 10000] (* see A106856 *)

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005