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A106946
Primes of the form 2x^2+xy+9y^2, with x and y any integer.
1
2, 19, 37, 83, 101, 199, 223, 233, 251, 277, 311, 313, 431, 463, 547, 571, 641, 719, 797, 821, 829, 839, 929, 941, 983, 1019, 1097, 1129, 1303, 1327, 1381, 1399, 1447, 1499, 1511, 1549, 1669, 1709, 1733, 1753, 1777, 1847, 1933, 1997, 2003, 2063
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
Union[QuadPrimes2[2, 1, 9, 10000], QuadPrimes2[2, -1, 9, 10000]] (* see A106856 *)
CROSSREFS
Sequence in context: A103058 A161442 A135834 * A240552 A107143 A018610
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 09 2005
STATUS
approved