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 A130186 #2 Mar 31 2012 13:20:13 %S A130186 1,20,508,17400,788688,46032768,3372731136,303444195840, %T A130186 32898989030400,4229445205094400,635789661109862400, %U A130186 110396039984094412800,21901378996153294848000,4915686113045739601920000 %N A130186 Fourth column (m=3) of triangle A130182. %C A130186 See the M. Bruschi et al. reference and the W. Lang link given in A130182. %F A130186 a(n)= A130186(n+3,3), n>=0. %Y A130186 Cf. A130185 (third column). %K A130186 nonn,easy %O A130186 0,2 %A A130186 _Wolfdieter Lang_ Jun 01 2007