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%I #4 Mar 31 2012 12:35:09
%S 1,1,3,1,5,5,15,23,69,89,411,639,3479,7047,38787,94093,630975,1734343,
%T 14199053,45390687,435447535,1674184531,18586794693,84450110411,
%U 1106569877013,5872912073625,91248958842685,569613725750709
%N Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 110-111-011 pattern in any orientation.
%e Maximal 8 X 8 example
%e .0.0.0.0.0.0.1.1
%e .0.1.1.0.0.1.1.1
%e .0.1.1.1.0.1.1.0
%e .0.0.1.1.0.0.0.0
%e .0.0.0.0.1.1.0.0
%e .0.1.1.0.1.1.1.0
%e .1.1.1.0.0.1.1.0
%e .1.1.0.0.0.0.0.0
%K nonn
%O 1,3
%A _R. H. Hardin_