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 A088416 #8 Aug 06 2021 07:01:11 %S A088416 1,2,3,4,5,6,7,8,14,16,17,21,22,23,24,35,73,83,147,553,801,1098,1115 %N A088416 A088415 indexed by A000040. %F A088416 a(n) = k such that A088415(n) = A000040(k). %F A088416 a(n) = A000720(A088415(n)). - _Michel Marcus_, Aug 06 2021 %Y A088416 Cf. A000040, A088415. %K A088416 nonn,hard,more %O A088416 1,2 %A A088416 _Ray Chandler_, Oct 05 2003 %E A088416 Offset changed to 1 and a(20)-a(23) from _Jinyuan Wang_, Aug 06 2021