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Primes of the form 2x^2+xy+6y^2, with x and y nonnegative.
1

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

%S 2,59,61,157,173,283,379,431,601,613,647,683,739,827,941,967,991,1087,

%T 1129,1181,1217,1367,1399,1553,1657,1753,1823,1951,2069,2179,2251,

%U 2293,2311,2357,2371,2609,2617,2687,2753,2801,2903,3067,3119,3251

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

%C Discriminant=-47.

%H Vincenzo Librandi and Ray Chandler, <a href="/A106897/b106897.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, 1, 6, 10000] (* see A106856 *)

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005