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%I #3 Dec 08 2012 14:19:44
%S 2,18,143,816,4467,27192,158296,915920,5443662,31825008,185788218,
%T 1094039664,6406886173,37509117127,220173740293,1290097909772,
%U 7558886967916,44324041325721
%N Equals two maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..1 nX3 array
%C Column 3 of A220247
%e Some solutions for n=3
%e ..0..0..0....0..1..0....1..0..0....0..1..0....0..0..0....0..1..0....1..0..0
%e ..0..0..0....1..1..0....0..0..0....1..0..0....0..0..0....1..0..0....0..0..1
%e ..0..1..0....0..0..1....0..0..0....0..0..1....0..0..0....0..0..0....0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 08 2012