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A107206
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Primes of the form x^2 + 90y^2.
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2
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139, 211, 379, 409, 619, 811, 859, 1051, 1171, 1201, 1321, 1459, 1489, 1609, 1801, 2179, 2251, 2281, 2371, 2539, 2659, 3019, 3121, 3169, 3361, 3529, 3571, 3769, 3931, 4099, 4201, 4651, 5059, 5419, 5449, 5641, 5689, 5779, 5851, 5881, 6091
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OFFSET
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1,1
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COMMENTS
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Discriminant = -360. See A107132 for more information.
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LINKS
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MATHEMATICA
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QuadPrimes2[1, 0, 90, 10000] (* see A106856 *)
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PROG
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(PARI) list(lim)=my(v=List(), w, t); for(x=1, sqrtint(lim\1), w=x^2; for(y=1, sqrtint((lim-w)\90), if(isprime(t=w+90*y^2), listput(v, t)))); Set(v) \\ Charles R Greathouse IV, Feb 10 2017
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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