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Number of nX4 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value 2-x(i,j)
1

%I #4 Oct 04 2013 05:43:42

%S 9,739,33119,1622763,78416265,3788842363,183213209145,8859387292449,

%T 428371366651425,20712776154273627,1001517772189056421,

%U 48426025953836117091,2341525140459285538795,113218875141418681649923

%N Number of nX4 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value 2-x(i,j)

%C Column 4 of A229934

%H R. H. Hardin, <a href="/A229930/b229930.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..0..0..2..1....1..1..0..2....1..1..1..1....1..1..0..2....2..1..2..2

%e ..2..1..1..1....0..1..2..0....2..0..1..2....0..0..0..0....0..1..0..0

%e ..1..1..2..0....2..1..1..2....1..1..0..0....2..0..2..0....1..2..2..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 04 2013