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 A111727 #1 Jan 24 2006 03:00:00 %S A111727 5,1834560,517517500266693633076805172570524811961093324800, %T A111727 4244773998140675903976169144320000, %U A111727 3976213947924477545093906865809650247270400,12291248474277267848395134563637563923813851715476607482451722240 %N A111727 Values of k corresponding to A111227. %K A111727 nonn %O A111727 1,1 %A A111727 Lambert Klasen (lambert.klasen(AT)gmx.net), Oct 26 2005