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 A084212 #3 Mar 30 2012 18:36:34 %S A084212 1,1,-5,37,-310,2795,-26352,256257,-2548875,25793149,-264579518, %T A084212 2743935678,-28716005918,302812817148,-3213908529802,34301475340630, %U A084212 -367873673112308,3962187547336323 %N A084212 G.f. A(x) defined by: A(x)^12 consists entirely of integer coefficients between 1 and 12 (A084067); A(x) is the unique power series solution with A(0)=1. %C A084212 Limit a(n)/a(n+1) --> r = -0.086930814654238 where A(r)=0. %Y A084212 Cf. A084067, A084202-A084211. %K A084212 sign %O A084212 0,3 %A A084212 _Paul D. Hanna_, May 20 2003