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A146627 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1010-1111-0010 pattern in any orientation. 0

%I #4 Mar 31 2012 12:35:11

%S 1,1,1,1,1,1,17,21,573,1143,12133,30945,812099,2463251,205843047,

%T 793610117,114751333899,550658503225,126710497064071,751070142241727,

%U 321642812339840537,2354725099172800861

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1010-1111-0010 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 .1.1.1.0.0.1.1.1

%e .0.1.0.0.0.0.1.0

%e .0.1.1.0.0.1.1.0

%K nonn

%O 1,7

%A _R. H. Hardin_, Nov 04 2008

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)