A107001 Primes of the form x^2+xy+24y^2, with x and y nonnegative.

131, 239, 389, 419, 461, 821, 919, 1051, 1109, 1531, 1601, 1879, 1901, 2011, 2399, 2411, 2609, 2699, 2791, 2971, 3011, 3041, 3469, 3541, 3559, 3671, 3709, 4139, 4219, 4261, 4349, 4451, 4679, 4789, 4799, 4951, 5101, 5231, 5279, 5479, 5821

Offset: 1

Author

T. D. Noe, May 09 2005

Keywords

• nonn
• easy

Comments

Discriminant=-95.

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[1, 1, 24, 10000] (* see A106856 *)