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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 12:35:15
%S 1,1,1,1,1,3,11,27,63,325,2169,14949,107269
%N Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1100-0111-0100 pattern in any orientation.
%e Maximal 8 X 8 example
%e .0.0.0.0.0.0.0.0
%e .0.0.0.0.0.0.0.0
%e .0.0.0.0.0.0.1.0
%e .0.0.0.0.1.1.1.0
%e .0.0.0.1.0.0.1.1
%e .0.0.0.1.0.0.0.1
%e .0.0.1.1.1.0.0.0
%e .0.0.0.0.1.1.0.0
%K nonn
%O 1,6
%A _R. H. Hardin_, Nov 04 2008