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%I #3 Jan 14 2013 05:21:02
%S 0,918,284702,86673898,25415184702,7392392443622,2142967506078650,
%T 620488065801083664,179590766393598824048
%N Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no 2-loops and with no occupancy greater than 2
%C Column 7 of A221388
%e Some solutions for n=3
%e ..0..1..2..2..1..1..1....0..2..2..2..1..1..1....0..1..2..0..1..2..1
%e ..0..1..2..2..1..1..0....0..1..1..1..1..2..1....0..2..2..1..2..2..0
%e ..0..2..1..0..1..2..0....1..0..1..1..0..2..0....0..1..0..2..1..1..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 14 2013