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%I #4 Mar 31 2012 12:35:10
%S 1,1,1,1,3,10,29,100,387,2276,17581,155034,1632582,20304423,321404215,
%T 6545616593,163131399978,4942168957230,181963337378973,
%U 8263219425456168,468671383459094714,32913148405732346545
%N Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0110-1111 pattern in any orientation.
%e Maximal 8 X 8 example
%e .0.0.0.0.1.0.0.0
%e .0.0.0.1.1.0.0.0
%e .0.0.0.1.1.0.0.0
%e .0.1.1.0.1.0.0.1
%e .1.1.1.1.0.0.1.1
%e .0.0.0.0.0.0.1.1
%e .0.0.0.0.1.1.0.1
%e .0.0.0.1.1.1.1.0
%K nonn
%O 1,5
%A _R. H. Hardin_
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