A033256 - OEIS

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A033256

Primes of form x^2+87*y^2.

103, 151, 283, 349, 373, 397, 487, 571, 709, 787, 877, 883, 1039, 1459, 1531, 1567, 1753, 2017, 2029, 2179, 2203, 2239, 2371, 2383, 2557, 2617, 2659, 2719, 2749, 2791, 2851, 3181, 3253, 3301, 3331, 3373

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OFFSET

1,1

COMMENTS

Also primes of the form x^2-xy+22y^2 with x and y nonnegative. - T. D. Noe, May 08 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)

MATHEMATICA

QuadPrimes2[1, 0, 87, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A058999 A046077 A127027 * A106983 A328822 A141962

Adjacent sequences: A033253 A033254 A033255 * A033257 A033258 A033259

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved