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 A019360 #18 Jan 31 2018 11:41:26 %S A019360 19,23,31,41,43,53,59,67,73,79,83,101,113,149,157,167,179,193,199,233, %T A019360 241,251,293,311,313,337,349,367,373,389,401,431,439,449,461,467,479, %U A019360 491,503,509,523,557,563,587,601,613,617,641,659,661,673,701,719,733,739,743 %N A019360 Primes with primitive root 34. %H A019360 Vincenzo Librandi, <a href="/A019360/b019360.txt">Table of n, a(n) for n = 1..1000</a> %H A019360 <a href="/index/Pri#primes_root">Index entries for primes by primitive root</a> %t A019360 Select[Prime[Range[200]], MultiplicativeOrder[34, #] == # - 1 &] %K A019360 nonn,easy %O A019360 1,1 %A A019360 _David W. Wilson_