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Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1110-0110-0111 pattern in any orientation.
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%I #4 Mar 31 2012 12:35:17

%S 1,1,1,1,1,3,9,19,37,159,849,4243,19707,136969,1272775,12839957

%N Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1110-0110-0111 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.0.1.1.1.0.0.0

%e .0.0.0.1.1.0.0.0

%e .1.0.0.1.1.1.0.0

%e .1.1.1.0.0.0.0.0

%e .1.1.1.0.0.0.0.0

%e .0.0.1.0.0.0.0.0

%e .0.0.0.0.0.0.0.0

%e .0.0.0.0.0.0.0.0

%K nonn

%O 1,6

%A _R. H. Hardin_