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A107004
Primes of the form 5x^2-2xy+5y^2, with x and y nonnegative.
1
5, 53, 101, 173, 269, 317, 389, 653, 701, 797, 821, 941, 1061, 1229, 1277, 1301, 1493, 1613, 1709, 1733, 1949, 1997, 2069, 2141, 2333, 2357, 2381, 2477, 2549, 2693, 2741, 2789, 2837, 2957, 3389, 3413, 3533, 3557, 3701, 3797, 3821, 4229
OFFSET
1,1
COMMENTS
Discriminant=-96.
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, -2, 5, 10000] (* see A106856 *)
CROSSREFS
Sequence in context: A362252 A091272 A142399 * A139869 A072156 A101190
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 09 2005
STATUS
approved