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A147210 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-0111-0011 pattern in any orientation. 0

%I

%S 1,1,1,1,1,1,19,31,671,1393,17427,44279,1106663,3412457,320938143,

%T 1265591403,240272372207,1198689233053,298357443446865,

%U 1842799915443649,817026217664351385,6225260273965873969

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-0111-0011 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.1.1.0.0.1.1.0

%e .0.1.1.0.0.1.1.0

%e .1.1.0.0.0.0.1.1

%e .1.0.0.0.0.0.0.1

%e .0.0.1.0.0.1.0.0

%e .0.1.1.0.0.1.1.0

%e .1.1.0.0.0.0.1.1

%e .1.1.0.0.0.0.1.1

%K nonn

%O 1,7

%A _R. H. Hardin_, Nov 04 2008

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Last modified September 29 22:48 EDT 2022. Contains 357092 sequences. (Running on oeis4.)