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A146382 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0110-1111 pattern in any orientation. 0

%I #4 Mar 31 2012 12:35:10

%S 1,1,1,7,5,40,19,418,491,27240,24451,2971576,2078908,614382155,

%T 474528877,322682051335,262749927910,400764203886592,313224621598547,

%U 1137774558755597994,881352408772896894,7433275932107389413579

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0110-1111 pattern in any orientation.

%e Maximal 8 X 8 example

%e .1.0.1.1.1.1.0.1

%e .1.1.0.1.1.0.1.1

%e .1.1.0.0.0.0.1.1

%e .1.0.1.1.1.1.0.1

%e .0.1.0.1.1.0.1.0

%e .1.1.0.0.0.0.1.1

%e .1.1.0.0.0.0.1.1

%e .0.1.0.0.0.0.1.0

%K nonn

%O 1,4

%A _R. H. Hardin_

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Last modified April 24 17:20 EDT 2024. Contains 371962 sequences. (Running on oeis4.)