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 A188632 #6 Mar 30 2012 16:52:01 %S A188632 1,4,12,44,160,640,2240,8912,32256 %N A188632 Size of optimal DNA code of length n and minimal distance 1 over alphabet of size 4. %C A188632 See Sun et al. reference for precise definition. %D A188632 J. Sun, S. Houghten and J. Ross, Edit metric codes with combinatorial DNA constraints, Congessus Numerant., 204 (2010), 65-92 (see Table 1). %F A188632 One bisection appears to be A098400. %K A188632 nonn %O A188632 1,2 %A A188632 _N. J. A. Sloane_, Apr 05 2011