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%I #4 Mar 31 2012 12:35:16
%S 1,1,1,1,1,1,1,1,3,15,29,45,73,153,491,1439,4619,16351,52019,195927,
%T 800019,3525897,17183583,88313479
%N Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 0100-0100-1111-0010-0010 pattern in any orientation.
%e Maximal 9 X 9 example
%e .0.0.1.0.0.0.1.0.0
%e .0.0.1.0.1.1.1.0.0
%e .1.1.1.1.0.0.1.1.1
%e .0.1.0.0.0.0.1.0.0
%e .0.1.0.0.0.0.0.1.0
%e .0.0.1.0.0.0.0.1.0
%e .1.1.1.0.0.1.1.1.1
%e .0.0.1.1.1.0.1.0.0
%e .0.0.1.0.0.0.1.0.0
%K nonn
%O 1,9
%A _R. H. Hardin_