A106939 - OEIS

A106939

Primes of the form 4x^2+3xy+5y^2, with x and y nonnegative.

5, 79, 167, 359, 373, 577, 617, 877, 881, 947, 1213, 1223, 1231, 1567, 1741, 1861, 1889, 2179, 2347, 2381, 2521, 2539, 2633, 2789, 2843, 3203, 3433, 3659, 3701, 3719, 3823, 4049, 4051, 4127, 4297, 4549, 4871, 4973, 4999, 5297, 5477, 5507

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Discriminant=-71.

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[4, 3, 5, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A363376 A136578 A057186 * A142114 A023148 A200986

Adjacent sequences: A106936 A106937 A106938 * A106940 A106941 A106942

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved