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 A119940 #2 Mar 31 2012 13:20:12 %S A119940 3,32,135,3456,3500,172800,694575,6272000,6286896,762048000,763062300, %T A119940 129090931200,129196782000,129282177024,517408266375,149597947699200, %U A119940 149654059755200,54042258606336000,54056895051375216 %N A119940 First column (n=1) of triangle A119937. %F A119940 a(m)= A119937(m,1), m>=2. %K A119940 nonn,easy %O A119940 2,1 %A A119940 _Wolfdieter Lang_, Jul 20 2006