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A106876
Primes of the form 3x^2-2xy+3y^2, with x and y nonnegative.
2
3, 11, 43, 67, 83, 131, 139, 179, 227, 283, 307, 331, 379, 443, 467, 491, 523, 547, 563, 643, 683, 691, 739, 787, 811, 827, 859, 971, 1019, 1091, 1123, 1163, 1187, 1291, 1307, 1427, 1451, 1523, 1531, 1571, 1619, 1667, 1699, 1723, 1787, 1811
OFFSET
1,1
COMMENTS
Discriminant=-32.
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, -2, 3, 10000] (* see A106856 *)
CROSSREFS
Sequence in context: A118166 A277888 A249568 * A034477 A140803 A246758
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 09 2005
STATUS
approved