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A106971
Primes of the form 5x^2+4xy+5y^2, with x and y nonnegative.
2
5, 89, 101, 173, 461, 593, 773, 1013, 1049, 1193, 1277, 1301, 1601, 1697, 1889, 1973, 2309, 2393, 2441, 2621, 2729, 2957, 3617, 3701, 3797, 3881, 4157, 4289, 4409, 4457, 4721, 4793, 4973, 5081, 5333, 5381, 5897, 6053, 6221, 6317, 6473
OFFSET
1,1
COMMENTS
Discriminant=-84.
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[5, 4, 5, 10000] (* see A106856 *)
CROSSREFS
Sequence in context: A184239 A054954 A266064 * A136618 A138700 A139937
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 09 2005
STATUS
approved