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%I #4 Jan 04 2017 06:32:03
%S 0,158,1939,15104,100306,618883,3589912,20094736,109292013,581664562,
%T 3041562335,15676720945,79831562595,402387057319,2010428875456,
%U 9967869656098,49089654019152,240315798975781,1170192251577228
%N Number of 4Xn 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
%C Row 4 of A280480.
%H R. H. Hardin, <a href="/A280483/b280483.txt">Table of n, a(n) for n = 1..131</a>
%e Some solutions for n=4
%e ..0..0..1..1. .0..0..0..1. .0..0..0..1. .0..0..1..0. .0..0..0..0
%e ..0..1..2..2. .1..0..1..1. .0..0..1..1. .0..1..2..2. .1..1..1..1
%e ..2..2..0..2. .0..1..2..2. .0..2..1..1. .1..2..2..0. .0..1..1..1
%e ..0..0..2..2. .1..2..2..1. .2..0..1..1. .2..2..0..0. .1..1..1..2
%Y Cf. A280480.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 04 2017
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