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%I #4 Mar 31 2012 12:35:54
%S 4096,1321860,414246824,131467169720,41531687999736,13143529051807800,
%T 4156740912572653752
%N 1/81 the number of (n+1)X6 0..2 arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor
%C Column 5 of A183819
%e Some solutions with upper left block zero for 3X6
%e ..0..0..0..0..1..2....0..0..0..0..1..2....0..0..0..0..0..2....0..0..0..0..2..0
%e ..0..0..1..1..1..2....0..0..1..2..2..0....0..0..1..2..2..0....0..0..2..1..1..0
%e ..0..1..2..2..1..0....1..2..1..0..2..1....2..1..1..1..2..0....1..1..2..0..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 07 2011