1,1
Also primes of the form x^2-xy+20y^2 with x and y nonnegative. - T. D. Noe (noe(AT)sspectra.com), May 08 2005
D. Cox, "Primes of Form x^2 + n y^2", Wiley, 1989.
Sequence in context: A064991 A051326 A033399 this_sequence A015984 A039544 A091819
Adjacent sequences: A033248 A033249 A033250 this_sequence A033252 A033253 A033254
nonn
njas
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