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A296923
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Primes p such that Legendre(-5,p) = -1.
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3
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2, 11, 13, 17, 19, 31, 37, 53, 59, 71, 73, 79, 97, 113, 131, 137, 139, 151, 157, 173, 179, 191, 193, 197, 199, 211, 233, 239, 251, 257, 271, 277, 293, 311, 313, 317, 331, 337, 353, 359, 373, 379, 397, 419, 431, 433, 439, 457, 479, 491, 499, 557, 571, 577, 593, 599, 613
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OFFSET
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1,1
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COMMENTS
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Primes == 2, 11, 13, 17, or 19 (mod 20). - Robert Israel, Dec 27 2017
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LINKS
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MAPLE
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Load the Maple program HH given in A296920. Then run HH(-5, 200);
select(isprime, {seq(seq(20*i+j, j=[2, 11, 13, 17, 19]), i=0..100)}); # Robert Israel, Dec 27 2017
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PROG
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(PARI) lista(nn) = forprime(p=2, nn, if (kronecker(-5, p) == -1, print1(p, ", "))); \\ Michel Marcus, Dec 26 2017
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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