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A207233 Number of nX6 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal 1

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

%S 425,180625,14540437,2320163321,350097798369,47274560618753,

%T 6288613378797777,848441499201176937,115729804849860223409,

%U 15815350418434277529561,2156595557340371898086465

%N Number of nX6 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal

%C Column 6 of A207235

%H R. H. Hardin, <a href="/A207233/b207233.txt">Table of n, a(n) for n = 1..100</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 16 2012

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Last modified April 18 18:49 EDT 2024. Contains 371781 sequences. (Running on oeis4.)