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 A080987 #2 Mar 31 2012 10:29:02 %S A080987 3,11,145,24721,706521601,568754681712768961, %T A080987 364030550787463437509470123011290881, %U A080987 147562413614008475146723669284672702440197339884722672618106791371480321 %N A080987 Ratios of successive terms of A080985. %Y A080987 Cf. A080985, A080582. %K A080987 nonn %O A080987 1,1 %A A080987 _Hugo Pfoertner_, Feb 26 2003