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A147506 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 11110-01111 pattern in any orientation. 0

%I

%S 1,1,1,1,3,5,13,17,45,89,2453,5391,90561,234023,4542721,13430469,

%T 852217819,3057070197,235450310313,994613290405,113069663601167,

%U 560671202395083,138912840204968035

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 11110-01111 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.0.0.0.0.0.0.0

%e .0.0.0.0.0.0.0.0

%e .0.0.0.0.0.0.0.0

%e .0.0.1.0.0.1.0.0

%e .0.1.1.0.0.1.1.0

%e .0.1.1.0.0.1.1.0

%e .0.1.1.0.0.1.1.0

%e .0.1.0.0.0.0.1.0

%K nonn

%O 1,5

%A _R. H. Hardin_

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Last modified June 26 04:19 EDT 2022. Contains 354874 sequences. (Running on oeis4.)