A033227 Primes of form x^2+39*y^2.

43, 103, 139, 157, 181, 277, 367, 439, 523, 547, 607, 673, 751, 823, 991, 997, 1039, 1063, 1117, 1153, 1171, 1231, 1249, 1381, 1429, 1453, 1459, 1483, 1693, 1759, 1933, 1951, 1993, 1999, 2011, 2029, 2131

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Comments

Also primes of the form x^2-xy+10y^2 with x and y nonnegative. - T. D. Noe, May 07 2005

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)

Crossrefs

Primes in A243194.

Programs

Mathematica

QuadPrimes2[1, 0, 39, 10000] (* see A106856 *)