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%I #4 Mar 31 2012 12:35:15
%S 1,1,1,1,9,21,55,201,1193,6291,45811,376085,4555905
%N Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1000-1101-0111 pattern in any orientation.
%e Maximal 8 X 8 example
%e .0.1.1.0.0.1.1.0
%e .0.1.0.0.0.0.1.1
%e .0.1.1.0.0.0.0.1
%e .0.0.1.1.0.0.1.1
%e .1.1.0.0.1.1.0.0
%e .1.0.0.0.0.1.1.0
%e .1.1.0.0.0.0.1.0
%e .0.1.1.0.0.1.1.0
%K nonn
%O 1,5
%A _R. H. Hardin_, Nov 04 2008