This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A059314 #8 Sep 08 2022 08:45:02
%S A059314 3,5,11,13,19,29,37,43,53,59,61,67,79,83,101,107,109,131,139,149,157,
%T A059314 163,173,179,181,197,211,227,229,251,269,277,283,293,307,313,317,331,
%U A059314 347,349,373,379,389,397,419,421,443,461,467,491,499,509,521,523,541
%N A059314 Primes p such that x^26 = 2 has no solution mod p.
%C A059314 Complement of A049558 relative to A000040.
%H A059314 Vincenzo Librandi, <a href="/A059314/b059314.txt">Table of n, a(n) for n = 1..1000</a>
%t A059314 ok[p_] := Reduce[Mod[x^26 - 2, p] == 0, x, Integers] == False; Select[Prime[Range[100]], ok ] (* _Vincenzo Librandi_, Sep 20 2012 *)
%o A059314 (Magma) [p: p in PrimesUpTo(550) | not exists{x : x in ResidueClassRing(p) | x^26 eq 2 }]; // _Vincenzo Librandi_, Sep 20 2012
%K A059314 nonn,easy
%O A059314 1,1
%A A059314 _Klaus Brockhaus_, Jan 25 2001