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 A001732 #10 Feb 03 2022 22:49:20 %S A001732 8,8,10,11,12,13,20,22,1000,11111111 %N A001732 8 in base 10-n. %D A001732 C. Pickover, Mazes for the Mind, St. Martin's Press, NY, 1992, p. 349. %K A001732 fini,nonn,base,full %O A001732 0,1 %A A001732 _N. J. A. Sloane_