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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-0111-0010 pattern in any orientation.
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%I #4 Mar 31 2012 12:35:10

%S 1,1,1,1,1,1,19,35,771,1683,28615,78413,3741521,13151847,1946971473,

%T 8940112761,2361147494637,13880359808709,6569185580421057,

%U 49195861314648117,52900985450007655737,507372780878036963435

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-0111-0010 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.1.0.0.0.0.1.0

%e .1.1.0.0.0.0.1.1

%e .0.1.1.0.0.1.1.0

%e .0.0.1.0.0.1.0.0

%e .1.0.0.0.0.0.0.1

%e .1.1.0.0.0.0.1.1

%e .0.1.1.0.0.1.1.0

%e .0.1.0.0.0.0.1.0

%K nonn

%O 1,7

%A _R. H. Hardin_