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%I #4 Nov 22 2013 07:24:07
%S 1,355,17759,718483,31119789,1370434057,60054788123,2629547976059,
%T 115168967578383,5044363984412427,220938351417726213,
%U 9676874008509774099,423837490846852109695,18563663237964339458229,813070077580205734910151
%N Number of 4Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally
%C Row 4 of A232295
%H R. H. Hardin, <a href="/A232298/b232298.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..2..1..0....2..0..1....2..1..0....2..1..2....2..2..1....2..2..1....2..2..2
%e ..0..2..2....2..2..0....2..0..2....2..2..1....1..2..1....0..1..2....2..2..0
%e ..2..1..1....1..1..2....1..2..2....2..0..1....2..1..0....1..2..2....2..1..0
%e ..2..2..1....1..2..1....1..1..0....2..2..1....0..2..1....2..2..1....2..2..2
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 22 2013
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