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Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1111-1111 pattern in any orientation.
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%I #4 Mar 31 2012 12:35:14

%S 1,1,1,3,1,5,1,10,7,62,25,420,89,3595,559,35290,4332,459986,47525,

%T 9058999,720844,232457113,13515353,7854920994,345530332,353173272787,

%U 11945906159,21075055556569,546900316419

%N Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1111-1111 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.0.1.1.1.1.0.0

%e .0.0.1.1.1.1.0.0

%e .1.1.0.0.0.0.1.1

%e .1.1.0.0.0.0.1.1

%e .1.1.0.0.0.0.1.1

%e .1.1.0.0.0.0.1.1

%e .0.0.1.1.1.1.0.0

%e .0.0.1.1.1.1.0.0

%K nonn

%O 1,4

%A _R. H. Hardin_, Nov 04 2008