A106995 - OEIS

A106995

Primes of the form 3x^2+xy+8y^2, with x and y nonnegative.

3, 37, 167, 193, 223, 293, 523, 563, 827, 857, 863, 1063, 1123, 1153, 1307, 1637, 1747, 2003, 2203, 2273, 2333, 2423, 2617, 2767, 2917, 2963, 3187, 3257, 3527, 3613, 3623, 3643, 3793, 3943, 3967, 4003, 4057, 4133, 4397, 4663, 4673, 4877

(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: A154823 A109835 A066364 * A120076 A119938 A232303

Adjacent sequences: A106992 A106993 A106994 * A106996 A106997 A106998

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved