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 A106869 Primes of the form x^2+xy+6y^2, with x and y nonnegative. 2

%I

%S 59,101,167,173,223,271,307,317,347,449,463,593,599,607,691,719,809,

%T 821,877,883,991,997,1097,1117,1151,1181,1231,1319,1451,1453,1553,

%U 1613,1669,1697,1787,1789,1871,1889,1913,2027,2053,2143,2339,2347

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

%C Discriminant=-23.

%H Vincenzo Librandi and Ray Chandler, <a href="/A106869/b106869.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[1, 1, 6, 10000] (* see A106856 *)

%Y Cf. A028929, A106867.

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005

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Last modified December 14 22:42 EST 2019. Contains 329987 sequences. (Running on oeis4.)