A106914 Primes of the form 3x^2+2xy+5y^2, with x and y nonnegative.

3, 5, 59, 61, 131, 157, 283, 293, 349, 397, 461, 523, 587, 661, 677, 691, 787, 853, 859, 997, 1013, 1091, 1109, 1237, 1277, 1301, 1427, 1459, 1571, 1699, 1811, 1973, 1979, 2029, 2141, 2203, 2243, 2309, 2467, 2579, 2659, 2693, 2749, 2803, 2861

Offset

1,1

Comments

Discriminant=-56.

Links

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, 2, 5, 10000] (* see A106856 *)

Crossrefs

Sequence in context: A086340 A248923 A155121 * A337924 A049190 A174920

Adjacent sequences: A106911 A106912 A106913 * A106915 A106916 A106917

Keyword

nonn,easy

Author

T. D. Noe, May 09 2005

Status

approved