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Primes of the form x^2+xy+14y^2, with x and y nonnegative.
2

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

%S 59,71,199,229,251,269,311,379,389,509,631,661,691,751,839,929,1049,

%T 1061,1171,1181,1279,1321,1409,1439,1499,1571,1609,1699,1721,1741,

%U 1901,1951,2029,2069,2269,2341,2399,2531,2621,2671,2729,2819,2971

%N Primes of the form x^2+xy+14y^2, with x and y nonnegative.

%C Discriminant=-55.

%H Vincenzo Librandi and Ray Chandler, <a href="/A106913/b106913.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[1, 1, 14, 10000] (* see A106856 *)

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005