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A207286 Number of nX4 0..3 arrays avoiding the pattern z-2 z-1 z in any row or column 1

%I #5 Mar 31 2012 12:37:16

%S 241,58081,12359893,2663436930,572065794890,122968569630173,

%T 26429424077425891,5680621805739504100,1220959989610537371341,

%U 262426428942956734097739,56404478394058146229795829

%N Number of nX4 0..3 arrays avoiding the pattern z-2 z-1 z in any row or column

%C Column 4 of A207290

%H R. H. Hardin, <a href="/A207286/b207286.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..0..1..3..0....1..1..1..3....1..0..3..2....1..3..2..1....2..3..1..3

%e ..2..0..3..0....3..3..2..0....1..1..0..0....1..2..1..1....2..2..1..1

%e ..2..0..3..1....0..2..1..1....3..1..3..0....0..2..0..3....3..2..0..1

%e ..1..2..0..3....3..1..0..0....1..0..1..3....0..0..2..1....0..3..3..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 16 2012

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Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)