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 A055181 #5 Mar 30 2012 18:57:03 %S A055181 1,1,1,1,1,1,2,1,2,1,3,2,2,1,2,4,3,2,2,3,2,2,4,4,3,2,4,2,4,4,4,2,3,2, %T A055181 4,2,7,4 %N A055181 Number of new numbers in n-th segment of A055174; see example line of A055174. %C A055181 Also, the number of new numbers in n-th segment of A055192. %K A055181 nonn %O A055181 1,7 %A A055181 _Clark Kimberling_, Apr 27 2000