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 A239782 #9 Jul 18 2014 12:31:29 %S A239782 1,1,14,321,12256,682985,52551216,5333977789 %N A239782 Number of pairs of functions (f,g) from a set of n elements into itself satisfying f(g(f(x))) = f(f(g(x))). %Y A239782 Cf. A181162. %K A239782 nonn,more %O A239782 0,3 %A A239782 _Chad Brewbaker_, Mar 26 2014 %E A239782 a(6)-a(7) from _Giovanni Resta_, Mar 28 2014