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 A030769 #14 Feb 18 2023 07:30:17 %S A030769 1,2,2,4,5,7,9,11,13,15,18,20,22,23,24,30,32,35,38,42,46,49,53,55,57, %T A030769 60,64,70 %N A030769 Duplicate of A030739. %K A030769 dead %O A030769 1,2 %A A030769 _Clark Kimberling_