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 A030779 #14 Feb 18 2023 07:30:14 %S A030779 1,2,3,3,5,7,9,11,13,15,17,19,20,22,24,27,30,35,38,41,44,46,49,52,58, %T A030779 61,63,67 %N A030779 Duplicate of A030729. %K A030779 dead %O A030779 1,2 %A A030779 _Clark Kimberling_