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A147056 Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 0100-1101-0111 pattern in any orientation. 0

%I

%S 1,1,1,1,1,1,1,1,1,1,1,1,7,7,21,21,47,47,193,193,927,927

%N Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 0100-1101-0111 pattern in any orientation.

%e Maximal 13 X 13 example

%e .0.0.0.0.1.0.0.0.1.0.0.0.0

%e .0.0.0.1.1.1.0.1.1.1.0.0.0

%e .0.0.0.0.0.1.0.1.0.0.0.0.0

%e .0.1.0.0.1.1.0.1.1.0.0.1.0

%e .1.1.0.1.0.0.0.0.0.1.0.1.1

%e .0.1.1.1.0.0.0.0.0.1.1.1.0

%e .0.0.0.0.0.0.0.0.0.0.0.0.0

%e .0.1.1.1.0.0.0.0.0.1.1.1.0

%e .1.1.0.1.0.0.0.0.0.1.0.1.1

%e .0.1.0.0.1.1.0.1.1.0.0.1.0

%e .0.0.0.0.0.1.0.1.0.0.0.0.0

%e .0.0.0.1.1.1.0.1.1.1.0.0.0

%e .0.0.0.0.1.0.0.0.1.0.0.0.0

%K nonn

%O 1,13

%A _R. H. Hardin_, Nov 04 2008

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Last modified June 25 18:38 EDT 2022. Contains 354851 sequences. (Running on oeis4.)