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%I #4 Mar 31 2012 12:35:10
%S 1,1,1,1,1,1,1,3,7,13,21,39,136,493,1722,5497,18675,87521,494306,
%T 2893703,17090719,106149289,783678982,6830573137,66084580709,
%U 674363788779,7402933526180,90919163844646,1283657951631942,20222581811585561
%N Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 0100-1111-0100 pattern in any orientation.
%e Maximal 8 X 8 example
%e .0.0.0.0.1.0.0.0
%e .0.0.1.1.1.1.0.0
%e .0.1.0.0.1.0.1.0
%e .0.1.0.0.0.1.1.1
%e .1.1.1.0.0.0.1.0
%e .0.1.0.1.0.0.1.0
%e .0.0.1.1.1.1.0.0
%e .0.0.0.1.0.0.0.0
%K nonn
%O 1,8
%A _R. H. Hardin_
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