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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1110-0111 pattern in any orientation.
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%I #4 Mar 31 2012 12:35:10

%S 1,1,1,1,5,7,19,35,463,969,22041,58321,1701021,5460085,383363779,

%T 1519453757,207202049471,1016198618209,232688832421803,

%U 1403058689772715,628307720419918447,4670279652295220195,3965584480917103684129

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1110-0111 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.1.0.0.0.0.1.0

%e .0.1.1.0.0.1.1.0

%e .0.1.1.0.0.1.1.0

%e .0.0.1.0.0.1.0.0

%e .1.0.0.0.0.0.0.1

%e .1.1.0.0.0.0.1.1

%e .1.1.0.0.0.0.1.1

%e .0.1.0.0.0.0.1.0

%K nonn

%O 1,5

%A _R. H. Hardin_