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 A036586 #5 Jul 08 2025 21:46:20 %S A036586 2,0,1,2,1,0,2,0,1,0,2,1,2,0,1,2,1,0,2,1,2,0,1,0,2,0,1,2,1,0,2,0,1,0, %T A036586 2,1,2,0,1,0,2,0,1,2,1,0,2,1,2,0,1,2,1,0,2,0,1,0,2,1,2,0,1,2,1,0,2,1, %U A036586 2,0,1,0,2,0,1,2,1,0,2,1,2,0,1,2,1,0,2,0,1,0,2,1,2,0,1,0,2,0,1 %N A036586 Ternary Thue-Morse sequence: closed under a->abc, b->ac, c->b. %D A036586 M. Lothaire, Combinatorics on Words. Addison-Wesley, Reading, MA, 1983, p. 26. %K A036586 nonn %O A036586 0,1 %A A036586 _N. J. A. Sloane_