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 A101177 #3 Mar 30 2012 17:29:20 %S A101177 2,12,30,5040,384384,36628200,5967561600,1220096908800, %T A101177 350804594649600,97292707463952000,42873948150095462400, %U A101177 21336925409736330240000,11640487097965528951948800,7998487694738166709923840000 %N A101177 Product of terms in n-th row of triangle in A101174. %Y A101177 Cf. A101174, A101175, A101176, A101178, A101179. %K A101177 nonn %O A101177 1,1 %A A101177 _Ray Chandler_, Dec 03 2004