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%I #14 Dec 31 2017 16:52:44
%S 2,3,13,29,31,41,47,59,71,73,101,127,131,139,151,163,167,173,179,193,
%T 197,211,223,233,239,257,269,271,277,307,311,317,331,347,349,353,397,
%U 409,439,443,449,461,463,487,491,499,509,541,547,577,587,593,599,601
%N Primes that are squares mod 23.
%C Rational primes that decompose in the field Q(sqrt(-23)). - _N. J. A. Sloane_, Dec 26 2017
%H Vincenzo Librandi, <a href="/A191021/b191021.txt">Table of n, a(n) for n = 1..1000</a>
%H <a href="https://oeis.org/wiki/Index_to_OEIS:_Section_Pri#primes_decomp_of">Index to sequences related to decomposition of primes in quadratic fields</a>
%t Select[Prime[Range[200]], JacobiSymbol[#,23]==1&]
%K nonn,easy
%O 1,1
%A _T. D. Noe_, May 24 2011
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