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 A274504 #19 Sep 08 2022 08:46:17 %S A274504 2,7,11,17,29,31,37,41,43,47,53,67,73,89,97,103,107,109,149,163,167, %T A274504 179,197,199,211,223,241,257,271,277,311,313,317,331,347,353,367,373, %U A274504 379,383,389,409,421,433,439,443,479,491,499,503,521,541,547,557 %N A274504 Primes with Kronecker symbol (p|14) != 1. %C A274504 Complement of A191017 in primes. %C A274504 Conjecture: primes not congruent to (1, 3, 5, 9, 13, 15, 19, 23, 25, 27, 39, 45) mod 56. %H A274504 Vincenzo Librandi, <a href="/A274504/b274504.txt">Table of n, a(n) for n = 1..1000</a> %t A274504 Select[Prime[Range[200]], ! JacobiSymbol[#, 14] == 1 &] %o A274504 (Magma) [p: p in PrimesUpTo(619) | not KroneckerSymbol(p, 14) eq 1]; %Y A274504 Cf. A000040, A191017, A191061. %K A274504 nonn,easy %O A274504 1,1 %A A274504 _Vincenzo Librandi_, Jun 29 2016