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%I #3 Mar 31 2012 12:35:09
%S 1,1,1,1,1,1,5,5,17,17,53,53,497,497,10289,10289,196357,196357,
%T 5677027,5677027,310742317,310742317,27512226687,27512226687,
%U 3369038880519,3369038880519,646981592661815,646981592661815
%N Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 5-point zee 1,1 2,1 2,2 2,3 3,3 in any orientation.
%e Maximal 8 X 8 example
%e .0.0.1.0.0.1.0.0
%e .1.1.1.0.0.1.1.1
%e .1.0.0.0.0.0.0.1
%e .0.0.0.0.0.0.0.0
%e .0.0.0.0.0.0.0.0
%e .1.0.0.0.0.0.0.1
%e .1.1.1.0.0.1.1.1
%e .0.0.1.0.0.1.0.0
%K nonn
%O 1,7
%A _R. H. Hardin_, Oct 26 2008
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