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 A073878 #3 Dec 05 2013 19:55:32 %S A073878 1,1,5,13,1,690,29,0,9207207756,67857,935759904202397862281423, %T A073878 564640443387152026881790255697618312164921101355730025, %U A073878 356814640940769181,3694582731098,18773346867970684437556028438,0 %N A073878 A073877 divided by n. %Y A073878 Cf. A000110, A066562, A073877. %K A073878 nonn %O A073878 1,3 %A A073878 _Amarnath Murthy_, Aug 16 2002 %E A073878 More terms from Christopher M. Herron (cmh285(AT)psu.edu), Apr 25 2006