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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1101-0111 pattern in any orientation.
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%I #4 Mar 31 2012 12:35:14

%S 1,1,1,1,1,1,17,21,509,957,9009,23635,500815,1453635,110991021,

%T 410901579,51936051799,236370303513,42297696189623,235560923543349,

%U 80009496099425831,544930757644765859

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1101-0111 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 .0.0.0.0.0.0.0.0

%e .0.1.0.0.0.0.1.0

%e .1.1.1.0.0.1.1.1

%e .1.0.0.0.0.0.0.1

%e .1.1.0.0.0.0.1.1

%K nonn

%O 1,7

%A _R. H. Hardin_, Nov 04 2008