A106888 Primes of the form x^2+xy+10y^2, with x and y nonnegative.

43, 103, 139, 181, 277, 367, 439, 523, 547, 607, 673, 751, 823, 997, 1039, 1063, 1117, 1153, 1171, 1231, 1249, 1381, 1453, 1459, 1483, 1693, 1759, 1933, 1951, 1993, 1999, 2011, 2029, 2131, 2287, 2311, 2467, 2473, 2539, 2557, 2617, 2833

Offset

1,1

Comments

Discriminant=-39.

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[1, 1, 10, 10000] (* see A106856 *)

Crossrefs

Sequence in context: A141990 A253952 A033227 * A142795 A325077 A023293

Adjacent sequences: A106885 A106886 A106887 * A106889 A106890 A106891

Keyword

nonn,easy

Author

T. D. Noe, May 09 2005

Status

approved