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Primes of the form 2x^2+xy+11y^2, with x and y nonnegative.
1

%I #17 Aug 05 2014 14:16:30

%S 2,11,47,89,113,251,293,311,443,599,653,659,677,809,911,1013,1091,

%T 1163,1181,1187,1361,1409,1607,1871,1877,2243,2351,2357,2477,2549,

%U 2579,2711,2741,2969,3089,3221,3251,3323,3461,3581,3671,4013,4019

%N Primes of the form 2x^2+xy+11y^2, with x and y nonnegative.

%C Discriminant=-87.

%H Vincenzo Librandi and Ray Chandler, <a href="/A106980/b106980.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, 11, 10000] (* see A106856 *)

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005