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A107005 Primes of the form 4x^2+4xy+7y^2, with x and y nonnegative. 2

%I

%S 7,31,79,103,127,199,223,271,367,439,463,607,631,823,919,967,991,1087,

%T 1231,1279,1303,1327,1423,1447,1543,1567,1663,1831,1879,1951,1999,

%U 2143,2239,2311,2383,2503,2551,2719,2791,2887,3079,3271,3319,3391

%N Primes of the form 4x^2+4xy+7y^2, with x and y nonnegative.

%C Discriminant=-96. See A106856 for more information.

%H Vincenzo Librandi, <a href="/A107005/b107005.txt">Table of n, a(n) for n = 1..1000</a>

%t QuadPrimes[4, 4, 7, 10000] (* see A106856 *)

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005

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Last modified May 23 12:52 EDT 2013. Contains 225587 sequences.