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A033227 Primes of form x^2+39*y^2. 4
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

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)

MATHEMATICA

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

CROSSREFS

Primes in A234194.

Sequence in context: A141958 A141990 A253952 * A106888 A142795 A325077

Adjacent sequences:  A033224 A033225 A033226 * A033228 A033229 A033230

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 20 22:37 EDT 2019. Contains 328291 sequences. (Running on oeis4.)