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 A235325 #17 Mar 28 2014 05:59:25 %S A235325 1,1,4,51,1072,31845,1292616,68464207,4555593904,369790197705 %N A235325 Number of ordered pairs of endofunctions f,g on a set of n elements satisfying f(f(x)) = g(g(g(x))). %Y A235325 Cf. A000248, A000949. %K A235325 nonn,more %O A235325 0,3 %A A235325 _Chad Brewbaker_, Mar 26 2014 %E A235325 a(6)-a(7) from _Giovanni Resta_, Mar 26 2014 %E A235325 a(8)-a(9) from _Giovanni Resta_, Mar 28 2014