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%I #6 Sep 25 2021 18:46:39
%S 10419200,42093682560,75902079167968,166089641496321408,
%T 348593375731473172480
%N Number of (n+1) X 8 0..3 arrays with every 2 X 2 subblock trace equal to some horizontal or vertical neighbor 2 X 2 subblock trace.
%C Column 7 of A185807.
%e Some solutions for 3 X 8
%e ..0..0..0..2..0..0..2..3....0..0..0..2..2..1..1..3....0..0..0..0..0..1..3..2
%e ..0..0..0..0..1..3..3..3....0..0..0..0..0..0..1..3....0..0..0..0..3..3..3..1
%e ..0..0..0..0..0..2..2..2....0..0..0..0..0..3..3..3....0..0..0..0..0..3..3..3
%Y Cf. A185807.
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 04 2011
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