A107002 Primes of the form 5x^2+2xy+5y^2, with x and y nonnegative.

5, 29, 149, 197, 293, 461, 509, 557, 677, 773, 1013, 1109, 1181, 1373, 1637, 1877, 1901, 1973, 2213, 2237, 2309, 2621, 2861, 2909, 3221, 3461, 3581, 3677, 3917, 3989, 4013, 4133, 4157, 4253, 4349, 4397, 4517, 4733, 5189, 5381, 5813, 6029

Offset: 1

Author

T. D. Noe, May 09 2005

Keywords

• nonn
• easy

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)

Programs

Mathematica

QuadPrimes2[5, 2, 5, 10000] (* see A106856 *)