OFFSET
1,1
COMMENTS
Discriminant=-35.
Also, primes of the form x^2-xy+9y^2, with x and y nonnegative.
Also, primes which are squares (mod 35). A subsequence of A191026. - M. F. Hasler, Jan 15 2016
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, 9, 10000] (* see A106856 *)
PROG
(PARI) select(p->issquare(Mod(p, 35))&&isprime(p), [1..1000]) \\ M. F. Hasler, Jan 15 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 09 2005
STATUS
approved