A146594 - OEIS

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A146594

Number of n X n binary arrays with all ones connected only in a 1000-1000-1111 pattern in any orientation.

%I #4 Mar 31 2012 12:35:11

%S 1,1,1,17,77,549,6061,126381,3867721,164716773,10591661407,

%T 1060530627501

%N Number of n X n binary arrays with all ones connected only in a 1000-1000-1111 pattern in any orientation.

%e Maximal 8 X 8 example

%e .1.1.1.1.0.1.1.1

%e .1.0.0.0.0.0.0.1

%e .0.0.0.0.0.1.0.1

%e .1.0.0.0.0.1.0.0

%e .1.0.1.1.1.1.0.1

%e .1.0.0.0.0.0.0.1

%e .1.1.1.0.1.1.1.1

%K nonn

%O 1,4

%A _R. H. Hardin_, Nov 04 2008