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A106947
Primes of the form 2x^2-xy+9y^2, with x and y nonnegative.
1
2, 37, 83, 101, 199, 223, 251, 313, 431, 547, 571, 719, 821, 839, 983, 1097, 1129, 1327, 1447, 1499, 1549, 1669, 1847, 1997, 2003, 2113, 2203, 2207, 2287, 2297, 2593, 2663, 3061, 3169, 3259, 3361, 3391, 3457, 3511, 3559, 3593, 3821, 3877
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[2, -1, 9, 10000] (* see A106856 *)
CROSSREFS
Sequence in context: A107752 A055031 A041161 * A309429 A374919 A258896
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 09 2005
STATUS
approved