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%I #5 Jan 04 2013 04:37:05
%S 2,27,274,2648,23765,203122,1686374,13787513,111630017,898826748,
%T 7215684025,57832318493,463108937837,3706758773474,29661932054299,
%U 237327986894765,1898757328855273,15190598160183104,121526907452205194
%N Equals two maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nX3 array
%C Column 3 of A221188
%H R. H. Hardin, <a href="/A221186/b221186.txt">Table of n, a(n) for n = 1..190</a>
%e Some solutions for n=3
%e ..0..1..1....0..1..0....0..1..0....0..1..1....0..1..1....0..0..0....0..0..1
%e ..0..0..0....0..1..0....0..0..0....0..0..0....0..1..1....0..1..0....0..1..1
%e ..0..1..0....0..1..0....1..0..0....1..0..0....1..0..1....1..1..1....0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 04 2013