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 A008714 #10 Jul 08 2025 01:20:35 %S A008714 10,11,12,13,14,15,16,17,18,21,23,25,32,101,122,10001, %T A008714 11111111111111111 %N A008714 17 in base 17-n. %D A008714 C. Pickover, Mazes for the Mind, St. Martin's Press, NY, 1992, p. 349. %K A008714 fini,nonn,base,full %O A008714 0,1 %A A008714 _N. J. A. Sloane_