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%I #4 Feb 27 2013 08:40:23
%S 4,12,61,457,3411,31487,317655,3161392,31436637,315944445,3182997999,
%T 32059374557,323386403994,3267568146811,33053624461081,
%U 334704837151091,3392894959638835,34428005433287948,349661755820884825
%N Number of nX4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order
%C Column 4 of A222649
%H R. H. Hardin, <a href="/A222645/b222645.txt">Table of n, a(n) for n = 1..128</a>
%e Some solutions for n=3
%e ..0..0..0..1....0..1..1..1....0..1..0..0....0..1..1..1....0..1..1..1
%e ..0..0..0..2....0..1..1..1....2..0..0..0....1..1..1..1....0..1..1..1
%e ..0..0..2..2....1..1..1..1....0..0..0..0....2..1..1..1....2..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 27 2013