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 A084168 #8 Mar 09 2020 15:32:02 %S A084168 1,1,1,3,6,14,17,20,22,25,34,32,23,39,35,46,51 %N A084168 Count of primitive roots p = 2 or 1 mod 4 of elements in A084167. %Y A084168 Cf. A084167. %K A084168 nonn,fini,full,easy %O A084168 1,4 %A A084168 _Sven Simon_, May 17 2003 %E A084168 Offset changed to 1 by _Jinyuan Wang_, Mar 09 2020