%I #4 Jan 26 2013 05:56:23

%S 1,338,4073,308070,8348792,399279970,13922688699,579257407874,

%T 21834235656858,870030406828016,33601209785307294,1320837497060408788,

%U 51404875754751391265,2011965871277470408364,78494607904200406501896

%N Number of nX6 arrays of occupancy after each element moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns

%C Column 6 of A221800

%H R. H. Hardin, <a href="/A221799/b221799.txt">Table of n, a(n) for n = 1..16</a>

%e Some solutions for n=3

%e ..1..1..2..1..0..1....1..1..1..1..2..1....0..2..1..1..1..0....1..1..1..1..1..1

%e ..1..0..0..0..2..2....1..1..0..1..0..0....1..1..1..1..2..2....1..2..1..2..1..1

%e ..2..1..1..2..1..0....1..1..1..2..1..2....1..1..1..1..1..0....0..1..0..1..1..1

%K nonn

%O 1,2

%A _R. H. Hardin_ Jan 26 2013