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Robert Israel, <a href="/A296931/b296931.txt">Table of n, a(n) for n = 1..10000</a>
Primes p such that p == 1, 2, 3, 7, 9, 11, 13, 17, 21, 23, 25, 27, 31, 33, 39, 49, 53, or 63 (mod 68). - Robert Israel, Dec 26 2017
Alternative:
select(p-> isprime(p) and numtheory:-legendre(-17, p)<>-1, [2, seq(i, i=3..1000)]); # Robert Israel, Dec 26 2017
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allocated for N. J. A. Sloane
Primes p such that Legendre(-17,p) = 0 or 1.
2, 3, 7, 11, 13, 17, 23, 31, 53, 71, 79, 89, 101, 107, 131, 137, 139, 149, 157, 163, 167, 199, 211, 227, 229, 257, 281, 283, 293, 311, 347, 349, 353, 367, 373, 379, 389, 409, 419, 421, 431, 433, 439, 457, 461, 479, 487, 499, 503, 509, 547, 557
1,1
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nonn
N. J. A. Sloane, Dec 26 2017
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