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A106902 Primes of the form 3x^2-3xy+5y^2, with x and y nonnegative. 1


%S 3,5,11,17,23,29,41,71,107,113,131,167,173,197,227,233,269,311,317,

%T 347,401,419,431,449,479,503,521,617,641,653,677,683,719,743,809,821,

%U 827,839,857,881,887,911,929,941,947,983,1013,1031,1049,1061,1091

%N Primes of the form 3x^2-3xy+5y^2, with x and y nonnegative.

%C Discriminant=-51.

%H Vincenzo Librandi and Ray Chandler, <a href="/A106902/b106902.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[3, -3, 5, 10000] (* see A106856 *)

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005

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Last modified December 14 17:55 EST 2019. Contains 329979 sequences. (Running on oeis4.)