A033231 Primes of form x^2+46*y^2.

47, 71, 127, 167, 193, 233, 271, 353, 409, 439, 463, 487, 761, 809, 857, 887, 1039, 1097, 1151, 1231, 1319, 1361, 1409, 1439, 1511, 1553, 1567, 1657, 1697, 1777, 1783, 1879, 2017, 2111, 2239, 2281, 2393

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 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, 0, 46, 10000] (* see A106856 *)