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Number of n X n binary arrays with all ones connected only in a 11011-01110-00100 pattern in any orientation.
0

%I #4 Mar 31 2012 12:35:17

%S 1,1,1,1,13,49,332,3073,36531,597879,14127501,454449581,20354788308,

%T 1267965991925

%N Number of n X n binary arrays with all ones connected only in a 11011-01110-00100 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.0.0.1.1.0.1.1

%e .0.0.0.0.1.1.1.0

%e .0.0.0.0.0.1.0.1

%e .1.0.0.0.0.0.1.1

%e .1.1.0.0.0.1.1.0

%e .0.1.1.0.1.0.1.1

%e .1.1.0.1.1.1.0.1

%e .1.0.1.1.0.1.1.0

%K nonn

%O 1,5

%A _R. H. Hardin_