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A146707 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-1111-0100 pattern in any orientation. 0

%I

%S 1,1,1,1,1,1,17,21,585,1175,13343,33851,942879,2905569,245036529,

%T 956768823,144790868423,705471995975,176283229110919,1066729101305901,

%U 506338112398505861,3798966398967548935

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-1111-0100 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 .0.1.0.0.0.0.1.0

%e .1.1.1.0.0.1.1.1

%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 October 26 14:28 EDT 2021. Contains 348267 sequences. (Running on oeis4.)