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A107000 Primes of the form 2x^2-xy+12y^2, with x and y nonnegative. 1
2, 13, 103, 107, 317, 337, 487, 773, 977, 1097, 1193, 1237, 1283, 1447, 1523, 1663, 1823, 1997, 2017, 2293, 2393, 2503, 2687, 2693, 2713, 2777, 2843, 2953, 3023, 3067, 3137, 3347, 3413, 3433, 3457, 3517, 3547, 3677, 3947, 4157, 4283, 4297 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-95.

LINKS

Vincenzo Librandi and Ray Chandler, Table of n, a(n) for n = 1..10000 [First 1000 terms from Vincenzo Librandi]

N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)

MATHEMATICA

QuadPrimes2[2, -1, 12, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A301355 A077246 A266906 * A046891 A046893 A126036

Adjacent sequences:  A106997 A106998 A106999 * A107001 A107002 A107003

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved

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Last modified December 15 20:00 EST 2019. Contains 330000 sequences. (Running on oeis4.)