Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #3 Jan 26 2013 10:41:14
%S 0,333,40983,4715043,570066685,68489860450,8224749361083,
%T 987885812260577,118641972922938733,14248324215718943851,
%U 1711142647446159966808
%N Number of nX5 arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without 2-loops or left turns
%C Column 5 of A221828
%e Some solutions for n=3
%e ..1..1..0..0..0....1..1..0..0..1....0..1..1..1..0....0..2..3..1..1
%e ..1..2..1..0..1....2..2..1..0..1....1..1..1..2..1....1..0..1..2..0
%e ..2..2..1..2..1....0..1..3..2..0....1..1..1..2..1....1..1..1..1..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 26 2013