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 A160882 #2 Mar 30 2012 16:51:24 %S A160882 3,13,81,637,5649 %N A160882 Regular coverings having dihedral voltage groups: see Kwak-Lee reference in A160870 for precise definition. %K A160882 nonn %O A160882 1,1 %A A160882 _N. J. A. Sloane_, Nov 15 2009