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%I #4 Oct 11 2013 08:10:24
%S 0,8193,1223799,756450105,400233701367,218117038953009,
%T 117863748242661711,63824360296979648967,34546668873829672101987,
%U 18700870126913632045893531,10123031708751736005223316745
%N Number of 7Xn 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j)
%C Row 7 of A230184
%H R. H. Hardin, <a href="/A230190/b230190.txt">Table of n, a(n) for n = 1..23</a>
%e Some solutions for n=3
%e ..0..2..0....0..2..0....0..2..0....0..2..0....0..2..0....0..2..0....0..2..0
%e ..0..1..2....0..2..0....0..2..0....0..1..0....0..2..0....0..0..1....0..0..2
%e ..1..0..1....0..0..2....1..1..1....1..2..2....0..0..1....2..1..1....0..2..0
%e ..2..1..0....1..1..0....0..2..2....0..0..2....2..1..1....1..0..2....0..0..1
%e ..1..2..0....0..2..1....0..0..2....1..1..2....1..0..0....2..2..0....2..1..1
%e ..0..0..2....0..1..0....2..1..0....2..0..2....2..2..0....2..0..2....0..2..1
%e ..2..0..2....0..2..0....1..2..0....1..1..1....1..1..1....2..2..0....1..1..1
%K nonn
%O 1,2
%A _R. H. Hardin_, Oct 11 2013