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A106997 Primes of the form 3x^2-xy+8y^2, with x and y nonnegative. 1
3, 53, 97, 127, 257, 373, 547, 677, 683, 743, 787, 797, 877, 953, 1367, 1553, 1667, 1693, 1777, 1913, 2027, 2083, 2207, 2347, 2803, 2833, 2887, 3167, 3343, 3373, 3637, 3727, 3803, 3833, 3853, 3907, 3917, 4093, 4217, 4327, 4373, 4517, 4733 (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[3, -1, 8, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A082484 A187805 A178608 * A141929 A216042 A292530

Adjacent sequences:  A106994 A106995 A106996 * A106998 A106999 A107000

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved

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Last modified January 28 12:42 EST 2022. Contains 350656 sequences. (Running on oeis4.)