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A147076 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 10000-11111-10000 pattern in any orientation. 0

%I

%S 1,1,1,1,3,1,19,9,139,27,2920,1117,150482,41401,10982835,1602485,

%T 1208797417,157953713,292923653699,29971826239,128550895495446,

%U 9240996121217

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 10000-11111-10000 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 .0.1.0.0.0.0.1.0

%e .0.1.0.0.0.0.1.0

%e .0.1.0.0.0.0.1.0

%e .0.1.0.0.0.0.1.0

%e .1.1.1.0.0.1.1.1

%K nonn

%O 1,5

%A _R. H. Hardin_, Nov 04 2008

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Last modified February 3 09:09 EST 2023. Contains 360034 sequences. (Running on oeis4.)