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%I #4 Mar 31 2012 12:35:17
%S 1,1,1,1,1,9,21,63,297,1127,5413,31109,218667,1954511,18966855,
%T 237663851,3316716099,56055493989
%N Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-1111-0011 pattern in any orientation.
%e Maximal 8 X 8 example
%e .0.1.1.0.0.1.1.0
%e .0.1.1.0.0.1.1.0
%e .1.1.0.0.1.1.0.0
%e .1.1.0.0.1.1.0.0
%e .0.0.1.1.0.0.1.1
%e .0.0.1.1.0.0.1.1
%e .0.1.1.0.0.1.1.0
%e .0.1.1.0.0.1.1.0
%K nonn
%O 1,6
%A _R. H. Hardin_
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