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 A118386 #11 Aug 10 2021 01:43:54 %S A118386 1,5,7,11,19,22,29,47,58,71,127,142,191,446,508,607,758,1087,1214 %N A118386 Numbers k such that k has a record number of distinct shortest addition chains. %C A118386 Computed by _Neill M. Clift_. Verified up to a(17) by _David W. Wilson_. Indices of record values of A079300. %Y A118386 Cf. A003313, A079300. %K A118386 nonn,hard,more %O A118386 1,2 %A A118386 _David W. Wilson_, Apr 26 2006