%I #3 Mar 31 2012 12:35:08
%S 1,8,3256,1319648,27265229496,560946752022448
%N 1/9 of the number of 9-colorings of an n X n array symmetric under 180 degree rotation.
%K nonn
%O 1,2
%A _R. H. Hardin_, Oct 05 2008
