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 A110729 #15 Jan 08 2018 01:58:29 %S A110729 1,1,2,6,24,720,5040,362880,39916800,479001600,6227020800,87178291200 %N A110729 Factorial terms of Digital factorial (A110728). %C A110729 The corresponding indexes in A110728 are: 0, 1, 2, 3, 4, 80, 560, 13440, 1478400, 13305600, 172972800, 1614412800, ... . - _Rémy Sigrist_, Feb 15 2017 %Y A110729 Cf. A110728. %K A110729 base,nonn,more %O A110729 0,3 %A A110729 _Amarnath Murthy_, Aug 09 2005 %E A110729 Title changed, and more terms added by _Colin Barker_, Nov 20 2014 %E A110729 a(7)-a(11) from _Rémy Sigrist_, Feb 15 2017