%I #4 Mar 31 2012 12:35:15
%S 1,1,1,1,1,1,1,9,25,53,97,275,939,2977,11455,54387,273381,1565737,
%T 8740687,56416565,398132663
%N Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1000-1100-0111-0100 pattern in any orientation.
%e Maximal 8 X 8 example
%e .1.0.0.0.0.0.1.1
%e .1.1.0.0.1.1.1.0
%e .0.1.1.1.0.1.0.0
%e .0.1.0.0.0.1.0.0
%e .0.0.1.0.0.0.1.0
%e .0.0.1.0.1.1.1.0
%e .0.1.1.1.0.0.1.1
%e .1.1.0.0.0.0.0.1
%K nonn
%O 1,8
%A _R. H. Hardin_, Nov 04 2008