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%I #4 Mar 31 2012 12:35:09
%S 1,1,1,1,1,1,1,1,1,1,3,3,13,13,31,31,79,79,513,513,4397,4397,30071,
%T 30071
%N Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 110-100-111 pattern in any orientation.
%e Maximal 11 X 11 example
%e .0.0.1.1.1.0.1.1.1.0.0
%e .0.0.0.0.1.0.1.0.0.0.0
%e .1.0.0.1.1.0.1.1.0.0.1
%e .1.0.1.0.0.0.0.0.1.0.1
%e .1.1.1.0.0.0.0.0.1.1.1
%e .0.0.0.0.0.0.0.0.0.0.0
%e .1.1.1.0.0.0.0.0.1.1.1
%e .1.0.1.0.0.0.0.0.1.0.1
%e .1.0.0.1.1.0.1.1.0.0.1
%e .0.0.0.0.1.0.1.0.0.0.0
%e .0.0.1.1.1.0.1.1.1.0.0
%K nonn
%O 1,11
%A _R. H. Hardin_, Oct 27 2008