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%I #5 Mar 31 2012 12:37:16
%S 69,4761,247163,12584703,647820815,33403462497,1721695415743,
%T 88730578258613,4572950799187243,235680064764200747,
%U 12146435820476346225,626000438753879535467,32262680221309448337639,1662747377281516450070519
%N Number of nX4 0..2 arrays avoiding the pattern z z+1 z in any row or column
%C Column 4 of A207221
%H R. H. Hardin, <a href="/A207217/b207217.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..2..0..1....0..2..0..2....1..2..2..2....2..0..0..0....2..2..2..1
%e ..2..0..1..1....2..2..0..2....1..2..2..2....0..1..1..0....2..1..0..2
%e ..0..2..1..1....2..0..1..2....1..2..2..1....0..1..1..2....2..0..0..2
%e ..2..0..0..1....0..2..1..0....1..2..2..1....2..2..0..1....1..0..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 16 2012
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