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%I #6 May 27 2021 13:55:02
%S 76263,20738153,2259545215,363322785761,49524283508081
%N Number of (n+1) X 7 0..2 arrays with every 2 X 2 subblock determinant equal to some horizontal or vertical neighbor 2 X 2 subblock determinant.
%C Column 6 of A186218.
%e Some solutions for 3 X 7
%e ..0..0..0..0..1..2..2....0..0..2..2..1..2..2....0..0..0..0..2..0..2
%e ..0..0..0..0..1..1..2....0..0..0..0..0..0..0....0..0..0..0..0..0..1
%e ..0..0..0..0..1..0..2....0..0..0..2..2..1..2....0..0..1..1..2..0..1
%Y Cf. A186218.
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 15 2011
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