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 A105914 #9 Mar 31 2024 15:13:54 %S A105914 5,11,19,37,47,73,79,101,107,109,127,137,151,167,173,179,233,241,269, %T A105914 281,293,307,311,347,373,383,401,409,443,449,461,463,479,487,503,509, %U A105914 569,601,613,617,631,643,647,659,677,683,719,757,769,773,787,797,809,811,827,839 %N A105914 Primes for which -42 is a primitive root. %H A105914 Vincenzo Librandi, <a href="/A105914/b105914.txt">Table of n, a(n) for n = 1..1000</a> %H A105914 <a href="/index/Pri#primes_root">Index entries for primes by primitive root</a> %t A105914 pr=-42; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &] %K A105914 nonn %O A105914 1,1 %A A105914 _N. J. A. Sloane_, Apr 24 2005