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 A249035 #9 Jun 03 2017 15:30:27 %S A249035 4,0,0,9,9,8,8,8,3,6,9,9,9,3,7,5,3,4,2,3,0,9,5,8 %N A249035 Erroneous version of A249386. %C A249035 Included in accordance with OEIS policy of listing published but incorrect sequences, with pointers to the correct versions. %K A249035 dead %O A249035 0,1 %A A249035 _N. J. A. Sloane_, Oct 27 2014