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 A032072 #7 Mar 30 2012 17:37:01 %S A032072 5,20,300,7200,180000,5580000,195300000,7862400000,353808000000, %T A032072 17713080000000,974219400000000,58468132800000000,3800428632000000000, %U A032072 266043625848000000000 %N A032072 Number of reversible strings with n labeled beads of 5 colors, no palindromes of more than 1 bead. %H A032072 C. G. Bower, <a href="/transforms2.html">Transforms (2)</a> %F A032072 "BHJ" (reversible, identity, labeled) transform of 5, 0, 0, 0... %F A032072 n! * A032088. %K A032072 nonn %O A032072 1,1 %A A032072 _Christian G. Bower_