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%I #6 Aug 12 2016 06:53:59
%S 6,24,152,894,5748,38296,263484,1849602,13192840,95268876,694784964,
%T 5108061670,37808693148,281458023972,2105591552060,15819570917916,
%U 119302287092028,902712209530524,6850780687656012,52130155754678238
%N Number of 3Xn arrays containing n copies of 0..3-1 with no element plus any horizontal neighbor equal to 3-1.
%C Row 3 of A265882.
%H R. H. Hardin, <a href="/A265883/b265883.txt">Table of n, a(n) for n = 1..87</a>
%e Some solutions for n=4
%e ..0..1..2..1....2..1..0..1....0..0..1..0....2..2..1..0....0..0..0..1
%e ..2..1..2..2....1..0..0..0....1..2..2..2....1..0..0..0....1..2..1..0
%e ..0..0..1..0....1..2..2..2....2..1..0..1....1..2..2..1....2..2..1..2
%Y Cf. A265882.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 17 2015
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