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A229930 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).

%I A229930 #6 Jun 02 2025 08:39:53
%S A229930 9,739,33119,1622763,78416265,3788842363,183213209145,8859387292449,
%T A229930 428371366651425,20712776154273627,1001517772189056421,
%U A229930 48426025953836117091,2341525140459285538795,113218875141418681649923
%N A229930 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 A229930 Column 4 of A229934
%H A229930 R. H. Hardin, <a href="/A229930/b229930.txt">Table of n, a(n) for n = 1..210</a>
%e A229930 Some solutions for n=3
%e A229930 ..0..0..2..1....1..1..0..2....1..1..1..1....1..1..0..2....2..1..2..2
%e A229930 ..2..1..1..1....0..1..2..0....2..0..1..2....0..0..0..0....0..1..0..0
%e A229930 ..1..1..2..0....2..1..1..2....1..1..0..0....2..0..2..0....1..2..2..2
%K A229930 nonn
%O A229930 1,1
%A A229930 _R. H. Hardin_, Oct 04 2013