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A146233 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 110-111-001 pattern in any orientation. 0

%I

%S 1,1,1,1,1,1,133,283,2347,6395,87753,251797,22858141,88041969,

%T 27840502421,144128912619,33034155808473,218240863171141,

%U 101999530698529103,841310414172182303,1459539385749799398341

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 110-111-001 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 .1.0.0.0.0.0.0.1

%e .1.1.1.0.0.1.1.1

%e .0.1.1.0.0.1.1.0

%e .1.0.0.0.0.0.0.1

%e .1.1.1.0.0.1.1.1

%e .0.1.1.0.0.1.1.0

%K nonn

%O 1,7

%A _R. H. Hardin_

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Last modified June 26 04:50 EDT 2022. Contains 354877 sequences. (Running on oeis4.)