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 A070690 #25 Jun 01 2025 23:58:24 %S A070690 0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2, %T A070690 4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3, %U A070690 2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0,1,3,2,4,0 %N A070690 Duplicate of A070471. %K A070690 dead %O A070690 0,3