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 A054070 #4 Mar 30 2012 18:57:01 %S A054070 0,1,0,1,0,0,1,1,1,0,1,1,2,1,0,1,1,2,1,1,0,1,1,2,2,1,1,0,1,1,2,2,1,1, %T A054070 0,0,1,1,2,2,2,2,1,1,0,1,2,2,3,2,3,2,2,1,0,1,2,2,3,2,3,2,2,2,1,0,1,2, %U A054070 2,3,3,3,3,3,2,2,1,0,1,2,3,3,3,4,3,4,3,2,2,1 %N A054070 Number of k<=n such that a(k)>n, where a is the permutation A054068 of N. %K A054070 nonn %O A054070 1,13 %A A054070 _Clark Kimberling_