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Number of (4+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards
1

%I #4 Dec 14 2013 06:20:38

%S 169129037,71466955645,30486088122553,13036676136198570,

%T 5574143275976092654,2383129442012556083197,1018837814576470768593230,

%U 435575542162403062187818335,186217233746963741809536982185

%N Number of (4+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards

%C Row 4 of A233602

%H R. H. Hardin, <a href="/A233606/b233606.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 14 2013