Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #3 Jan 26 2013 06:37:30
%S 0,378,27692,2341962,197382906,16607042116,1396934985595,
%T 117495706868182,9880812782673851
%N Number of nX4 arrays of occupancy after each element moves to some king-move neighbor, without 2-loops or left turns
%C Column 4 of A221804
%e Some solutions for n=3
%e ..0..1..2..0....1..1..0..0....1..0..0..0....0..2..0..0....0..4..1..0
%e ..0..2..1..1....3..0..0..3....2..3..2..0....1..2..2..0....1..1..1..0
%e ..1..2..1..1....0..2..1..1....1..1..1..1....1..2..1..1....1..1..2..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 26 2013