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 A077175 #5 Dec 05 2013 19:55:49 %S A077175 2,6,60,5040,384384,36628200,5967561600,1220096908800,350804594649600, %T A077175 97292707463952000,42873948150095462400,21336925409736330240000, %U A077175 11640487097965528951948800,7998487694738166709923840000 %N A077175 Product of terms in n-th row of triangle in A077172. %Y A077175 Cf. A077172, A077173, A077174, A077176, A100918. %K A077175 nonn %O A077175 1,1 %A A077175 _Amarnath Murthy_, Nov 01 2002 %E A077175 Extended by _Ray Chandler_, Nov 29 2004