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%I #3 Dec 09 2012 08:26:56
%S 8,96,1411,15382,232795,3061937,40463019,533004621
%N Equals one maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and vertical neighbors in a random 0..1 nX4 array
%C Column 4 of A220287
%e Some solutions for n=3
%e ..1..0..0..0....1..0..1..1....1..1..1..1....1..1..1..1....0..0..0..1
%e ..1..0..0..0....1..0..0..0....0..0..1..1....1..0..0..1....0..1..0..0
%e ..1..1..0..0....0..0..0..0....1..0..1..0....1..1..0..1....1..0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 09 2012
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