%I #8 Oct 08 2018 10:21:03
%S 192,5832,184248,5871528,187446312,5986203912,191184793128,
%T 6106045615848,195014812167432,6228382893621192,198922099117492008,
%U 6353174267751532968,202907688630068868552,6480466044680473473672,206973133655395034550888
%N Number of n X 7 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally or antidiagonally.
%H R. H. Hardin, <a href="/A233154/b233154.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 42*a(n-1) - 351*a(n-2) + 972*a(n-3) - 810*a(n-4).
%F Empirical g.f.: 24*x*(8 - 93*x + 279*x^2 - 270*x^3) / ((1 - 3*x)*(1 - 39*x + 234*x^2 - 270*x^3)). - _Colin Barker_, Oct 08 2018
%e Some solutions for n=2:
%e ..0..0..1..0..1..2..1....1..2..1..0..1..2..2....2..2..1..2..2..1..0
%e ..1..0..1..2..2..2..2....2..2..1..2..1..2..1....2..2..2..1..2..1..2
%Y Column 7 of A233155.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 05 2013