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 A216748 #6 Sep 08 2022 08:46:03
%S A216748 5,7,13,23,29,31,37,47,53,61,71,79,101,103,109,127,137,149,151,157,
%T A216748 167,173,181,191,197,199,223,229,239,263,269,271,277,293,307,311,317,
%U A216748 349,359,367,373,383,389,397,409,421,431,439,443,461,463,479,487,503,509,541,557,599
%N A216748 Primes p such that x^34 = -2 has no solution mod p.
%C A216748 Complement of A051086 relative to A000040.
%H A216748 Vincenzo Librandi, <a href="/A216748/b216748.txt">Table of n, a(n) for n = 1..1000</a>
%t A216748 ok[p_]:=Reduce[Mod[x^34 + 2, p] == 0, x, Integers] == False;Select[Prime[Range[200]], ok]
%o A216748 (Magma) [ p: p in PrimesUpTo(600) | not exists{x : x in ResidueClassRing(p) | x^34 eq -2} ];
%Y A216748 Cf. A000040, A051086.
%K A216748 nonn,easy
%O A216748 1,1
%A A216748 _Vincenzo Librandi_, Sep 16 2012