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A207232 Number of nX5 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 161,25921,1089017,77937497,5437970705,350097798369,22315875854161,

%T 1438362000618041,93447573196175553,6077295728729067241,

%U 394563679167565622529,25591348028483715850553,1659889583215011705715697

%N Number of nX5 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal

%C Column 5 of A207235

%H R. H. Hardin, <a href="/A207232/b207232.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 16 2012

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Last modified July 15 06:17 EDT 2024. Contains 374324 sequences. (Running on oeis4.)