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 A202188 #6 Mar 31 2012 10:28:36 %S A202188 1,1,1,9,18,18,42,165,165,317,559,559,559,634,634 %N A202188 Index of A168425 when A174641(n) = A168425(m); a(n) = m. %C A202188 Same as A202187, but with repeats. %K A202188 nonn %O A202188 1,4 %A A202188 _John W. Nicholson_, Dec 14 2011