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A147416 Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1001-1111-0110 pattern in any orientation. 0

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

%S 1,1,1,1,1,3,9,20,53,192,789,4160,25089,166861,1330315,12854522

%N Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1001-1111-0110 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.0.1.0.0.1.0.0

%e .0.0.1.1.1.1.0.0

%e .1.1.0.1.1.0.1.1

%e .0.1.1.0.0.1.1.0

%e .0.1.1.0.0.1.1.0

%e .1.1.0.1.1.0.1.1

%e .0.0.1.1.1.1.0.0

%e .0.0.1.0.0.1.0.0

%K nonn

%O 1,6

%A _R. H. Hardin_

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Last modified March 28 07:20 EDT 2024. Contains 371235 sequences. (Running on oeis4.)