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%I #5 Jan 20 2013 18:15:08
%S 1,19,140,1206,10020,84160,705156,5912277,49563492,415515336,
%T 3483440165,29203220338,244823382148,2052461910954,17206688780344,
%U 144251223226490,1209321306131007,10138271200549217,84993576475914931,712538449541938001
%N Number of nX2 arrays of occupancy after each element moves to some king-move neighbor, without move-in move-out left turns
%C Column 2 of A221602
%H R. H. Hardin, <a href="/A221600/b221600.txt">Table of n, a(n) for n = 1..72</a>
%e Some solutions for n=3
%e ..0..0....0..0....1..1....1..2....2..1....0..1....0..2....1..0....0..2....1..1
%e ..1..2....1..3....3..1....1..2....0..1....0..2....2..0....4..0....1..2....0..3
%e ..1..2....0..2....0..0....0..0....1..1....1..2....1..1....1..0....1..0....0..1
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 20 2013
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