A147460 - OEIS

A147460

Number of n X n binary arrays with all ones connected only in a 1100-1111-0011 pattern in any orientation.

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

%S 1,1,1,9,25,93,589,6735,107293,1848191,45715541,1702371353,

%T 91650035599,6670440839931,660214237801903

%N Number of n X n binary arrays with all ones connected only in a 1100-1111-0011 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.1.1.0.0.1.1.0

%e .1.1.0.0.0.0.1.1

%e .0.0.1.1.0.0.0.0

%e .0.0.1.1.0.0.1.1

%e .0.1.1.0.1.1.1.1

%e .0.1.1.0.1.1.0.0

%K nonn

%O 1,4

%A _R. H. Hardin_