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A207225 Number of nX5 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal 1

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

%S 161,25921,1482361,115679881,8779228417,648206318305,47644493869633,

%T 3508487676429289,258892474473104753,19110659117244476825,

%U 1410303052384700607025,104059081148495261530793

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

%C Column 5 of A207228

%H R. H. Hardin, <a href="/A207225/b207225.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 16 2012

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Last modified June 9 01:13 EDT 2023. Contains 363165 sequences. (Running on oeis4.)