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A197204 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,1,0,3 for x=0,1,2,3,4 1

%I #5 Mar 31 2012 12:36:28

%S 4,154,3649,82408,1890344,44049565,1024514869,23694062554,

%T 549372026526,12743513094468,295451821724325,6849613829231115,

%U 158818786337504605,3682398510410799861,85378510136323889541,1979565632837619218162

%N Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,1,0,3 for x=0,1,2,3,4

%C Every 0 is next to 0 4's, every 1 is next to 1 2's, every 2 is next to 2 1's, every 3 is next to 3 0's, every 4 is next to 4 3's

%C Column 5 of A197207

%H R. H. Hardin, <a href="/A197204/b197204.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 11 2011

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)