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A106898 Primes of the form 2x^2+xy+6y^2. 1

%I

%S 2,7,53,59,61,89,97,131,157,173,263,283,331,337,353,379,431,479,491,

%T 521,541,601,613,643,647,683,709,719,739,827,883,911,941,967,991,1021,

%U 1087,1093,1117,1129,1181,1217,1229,1231,1367,1399,1427,1489,1493

%N Primes of the form 2x^2+xy+6y^2.

%C Discriminant=-47.

%H Vincenzo Librandi and Ray Chandler, <a href="/A106898/b106898.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 Union[QuadPrimes2[2, 1, 6, 10000], QuadPrimes2[2, -1, 6, 10000]] (* see A106856 *)

%Y Primes in A243652.

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005

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Last modified February 17 12:14 EST 2020. Contains 331996 sequences. (Running on oeis4.)