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Number of nX4 0..2 arrays with no element less than a strict majority of its horizontal and vertical neighbors
1

%I #4 Nov 12 2013 11:03:57

%S 22,341,7682,137961,2412274,42882766,765163605,13643499478,

%T 243317286312,4340128403053,77412117578960,1380680024126767,

%U 24625023800964584,439200986311182069,7833405373009045177,139713294059336266128

%N Number of nX4 0..2 arrays with no element less than a strict majority of its horizontal and vertical neighbors

%C Column 4 of A231651

%H R. H. Hardin, <a href="/A231647/b231647.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 12 2013