A033208 Primes of form x^2+97*y^2.

97, 101, 113, 197, 241, 293, 353, 389, 397, 421, 509, 557, 613, 673, 677, 773, 829, 877, 881, 937, 997, 1013, 1069, 1117, 1129, 1229, 1549, 1553, 1601, 1613, 1657, 1697, 1721, 1777, 1861, 1913, 1993, 2029

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• easy

References

• David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989.

Links

• Vincenzo Librandi and Ray Chandler, Table of n, a(n) for n = 1..10000 [First 2000 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, 0, 97, 10000] (* see A106856 *)