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A106994 Primes of the form 4x^2-xy+6y^2, with x and y nonnegative. 1

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

%S 101,139,149,229,311,359,479,541,619,691,701,719,761,1049,1259,1489,

%T 1499,1669,1721,1759,1811,1831,1949,2099,2251,2441,2999,3049,3121,

%U 3209,3331,3691,4001,4051,4229,4339,4481,4561,4621,4729,4871,5021

%N Primes of the form 4x^2-xy+6y^2, with x and y nonnegative.

%C Discriminant=-95.

%H Vincenzo Librandi and Ray Chandler, <a href="/A106994/b106994.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[4, -1, 6, 10000] (* see A106856 *)

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)