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A106976
Primes of the form 4x^2+3xy+6y^2, with x and y any integer.
1
7, 13, 67, 109, 139, 181, 199, 223, 241, 277, 313, 439, 457, 463, 499, 523, 547, 613, 631, 643, 661, 673, 691, 811, 919, 937, 991, 1009, 1021, 1051, 1069, 1093, 1153, 1213, 1231, 1321, 1327, 1399, 1483, 1543, 1579, 1657, 1669, 1741, 1747, 1789
OFFSET
1,1
COMMENTS
Discriminant=-87.
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[4, 3, 6, 10000], QuadPrimes2[4, -3, 6, 10000]] (* see A106856 *)
CROSSREFS
Sequence in context: A325029 A159198 A373543 * A219908 A098478 A174878
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 09 2005
STATUS
approved