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 A080986 #2 Mar 31 2012 10:29:02 %S A080986 4,14,178,29506,824811586,652329111297234946, %T A080986 411563898885102610704583389879582466, %U A080986 164866004502764290755787184747538569374756887082805069905652869331016706 %N A080986 Ratios of successive terms of A080984. %Y A080986 Cf. A080984, A080581. %K A080986 nonn %O A080986 1,1 %A A080986 _Hugo Pfoertner_, Feb 26 2003