The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #3 Jan 25 2013 07:49:13
%S 8,372,16384,703148,30088757,1287149604,55062005315,2355484567486,
%T 100765156040153
%N Number of nX3 arrays of occupancy after each element stays put or moves to some king-move neighbor, without move-in move-out left turns
%C Column 3 of A221776
%e Some solutions for n=3
%e ..0..2..3....1..0..0....0..0..1....0..2..3....1..2..0....1..1..2....0..2..2
%e ..1..1..0....0..1..2....3..0..0....1..0..1....1..1..2....0..0..1....2..1..1
%e ..2..0..0....3..0..2....1..1..3....1..1..0....2..0..0....2..0..2....0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 25 2013