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 A030612 #10 Apr 05 2020 02:11:01 %S A030612 1,2,1,1,1,1,1,2,1,2,1,1,1,2,1,3,1,1,1,2,3,1,1,1,2,1,1,1,1,1,1,1,1,2, %T A030612 1,1,2,1,1,1,1,1,1,1,1,1,1,1,2,1,2,1,1,1,1,1,1,1,1,2,2,2,1,1,1,1,1,3, %U A030612 2,1,1,1,1,1,1,1,1,2,2,1,1,1,2,1,1,1,1,1,1,2,1 %N A030612 Length of n-th run of digit 0 in A030604. %K A030612 nonn,base %O A030612 1,2 %A A030612 _Clark Kimberling_ %E A030612 Title corrected and initial 1 inserted for consistency with change in A030604 by _Sean A. Irvine_, Apr 04 2020