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A147003 Number of n X n binary arrays with all ones connected only in a 00100-11111-00100 pattern in any orientation. 0

%I #4 Mar 31 2012 12:35:14

%S 1,1,1,1,7,21,77,479,3600,33995,482862,8547925,199841936,6379998757,

%T 265761442757,14715360146745

%N Number of n X n binary arrays with all ones connected only in a 00100-11111-00100 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.0.1.0.0.0.1.0

%e .1.1.1.1.1.0.1.0

%e .0.0.1.0.0.1.1.1

%e .0.1.0.0.0.0.1.0

%e .0.1.0.0.0.0.1.0

%e .1.1.1.0.0.1.0.0

%e .0.1.0.1.1.1.1.1

%e .0.1.0.0.0.1.0.0

%K nonn

%O 1,5

%A _R. H. Hardin_, Nov 04 2008

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Last modified May 10 07:01 EDT 2024. Contains 372358 sequences. (Running on oeis4.)