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A107194
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Primes of the form 2x^2 + 41y^2.
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2
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2, 41, 43, 59, 73, 113, 139, 241, 283, 379, 401, 419, 433, 467, 491, 569, 619, 761, 881, 947, 1009, 1033, 1091, 1097, 1123, 1153, 1187, 1193, 1291, 1427, 1499, 1609, 1619, 1721, 1723, 1747, 1907, 1993, 2011, 2017, 2027, 2081, 2083, 2089, 2137
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OFFSET
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1,1
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COMMENTS
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Discriminant = -328. See A107132 for more information.
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LINKS
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MATHEMATICA
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QuadPrimes2[2, 0, 41, 10000] (* see A106856 *)
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PROG
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(PARI) list(lim)=my(v=List(), w, t); for(x=0, sqrtint(lim\2), w=2*x^2; for(y=0, sqrtint((lim-w)\41), if(isprime(t=w+41*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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