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%I #4 Feb 01 2013 12:20:26
%S 60,40608,17595404,8118923949,3719159201319,1705064784016177,
%T 781631768770230485,358315975721236723937,164259260168423743838749,
%U 75299755989611523426077650,34518925873564465982979613568
%N Number of nX6 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns
%C Column 6 of A221937
%H R. H. Hardin, <a href="/A221936/b221936.txt">Table of n, a(n) for n = 1..31</a>
%e Some solutions for n=3
%e ..0..2..1..1..2..0....0..2..0..1..0..3....0..2..0..1..0..2....0..2..1..0..3..1
%e ..0..3..2..1..1..2....0..3..0..2..1..0....0..3..1..0..1..1....0..3..2..1..0..0
%e ..0..1..0..0..0..2....0..2..1..0..2..1....0..2..0..3..0..2....0..0..1..0..4..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 01 2013