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%I #5 Jan 26 2013 07:11:04
%S 0,16,14,379,1052,11079,47390,361950,1871008,12486680,70263638,
%T 442461347,2585100812,15871512853,94285153508,572472852419,
%U 3425837212298,20699323338492,124271759172208,749252532667069,4504672207533346
%N Number of nX3 arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns
%C Column 3 of A221817
%H R. H. Hardin, <a href="/A221814/b221814.txt">Table of n, a(n) for n = 1..41</a>
%e Some solutions for n=3
%e ..1..1..1....0..1..1....0..1..1....0..2..1....0..2..1....0..1..1....1..1..1
%e ..0..2..0....0..2..1....1..2..0....0..2..1....1..3..0....1..3..0....0..3..0
%e ..1..3..0....1..3..0....1..3..0....1..2..0....1..1..0....1..2..0....1..2..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 26 2013
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