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A147361 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 01110-11111 pattern in any orientation. 0

%I #4 Mar 31 2012 12:35:16

%S 1,1,1,1,15,5,62,17,510,89,27004,5555,1402086,252517,161324581,

%T 16208566,45647676851,3528341313,18214143607973,1173259124198,

%U 14342537261685270,702406050500183

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 01110-11111 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 .0.0.1.0.0.1.0.0

%K nonn

%O 1,5

%A _R. H. Hardin_

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Last modified April 24 07:44 EDT 2024. Contains 371922 sequences. (Running on oeis4.)