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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #4 Mar 31 2012 12:35:16
%S 1,1,1,1,1,1,2,1,4,1,6,1,14,3,43,10,133,29,589,94,2990,317,15789,1198,
%T 99524,6765,770619
%N Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 01110-11111 pattern in any orientation.
%e Maximal 9 X 9 example
%e .0.0.0.0.0.0.0.0.0
%e .0.0.1.1.1.1.1.0.0
%e .0.1.0.1.1.1.0.1.0
%e .0.1.1.0.0.0.1.1.0
%e .0.1.1.0.0.0.1.1.0
%e .0.1.1.0.0.0.1.1.0
%e .0.1.0.1.1.1.0.1.0
%e .0.0.1.1.1.1.1.0.0
%e .0.0.0.0.0.0.0.0.0
%K nonn
%O 1,7
%A _R. H. Hardin_