A107000 Primes of the form 2x^2-xy+12y^2, with x and y nonnegative.

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

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: A365148 A371578 A266906 * A046891 A046893 A354159

Adjacent sequences: A106997 A106998 A106999 * A107001 A107002 A107003

Keyword

nonn,easy

Author

T. D. Noe, May 09 2005

Status

approved