%I #4 Mar 31 2012 12:35:11
%S 1,1,1,1,1,1,3,23,47,75,181,675,3025,16403,71953,340893,1986607,
%T 14754733,121306057,1066980245,9641071515,101852566849,1271193446821
%N Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 0110-1111-0100 pattern in any orientation.
%e Maximal 8 X 8 example
%e .0.0.0.0.1.0.0.0
%e .0.0.1.1.1.1.0.0
%e .0.1.0.1.1.0.1.0
%e .1.1.1.0.0.1.1.0
%e .0.1.1.0.0.1.1.1
%e .0.1.0.1.1.0.1.0
%e .0.0.1.1.1.1.0.0
%e .0.0.0.1.0.0.0.0
%K nonn
%O 1,7
%A _R. H. Hardin_, Nov 04 2008