%I #5 Aug 11 2014 22:45:54
%S 9,1407,78849,4722977,284444079,17072965263,1027868078181,
%T 61861526624839,3721702070420191,223920929460093089,
%U 13473042937456532657,810647385075641076549,48774886700839338028985,2934683063063203660000047
%N Number of nX4 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value 2-x(i,j)
%C Column 4 of A230176
%H R. H. Hardin, <a href="/A230172/b230172.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A230172/a230172.txt">Empirical recurrence of order 81</a>
%F Empirical recurrence of order 81 (see link above)
%e Some solutions for n=3
%e ..2..0..1..1....0..2..2..0....2..1..0..2....0..0..0..2....0..0..0..2
%e ..2..0..2..2....1..1..2..0....2..0..1..0....2..1..1..0....0..2..2..0
%e ..0..2..0..0....1..0..0..0....0..1..2..0....0..0..0..2....2..2..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 11 2013