%I #4 Feb 28 2013 07:12:53
%S 0,2,2,40,90,1336,3458,44516,126476,1527344,4599422,53131172,
%T 167316392,1872027432,6086187592,66611566008,221500197840,
%U 2388653206624,8068017360224,86178588357352,294198667299936,3124170165050528
%N Number of nX3 0..2 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order
%C Column 3 of A222673
%H R. H. Hardin, <a href="/A222668/b222668.txt">Table of n, a(n) for n = 1..210</a>
%e All solutions for n=3
%e ..0..0..0....0..0..1
%e ..0..0..0....0..0..0
%e ..1..0..0....0..0..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Feb 28 2013