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A232405 Number of (n+1)X(7+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or vertically, with no adjacent elements equal 1

%I #4 Nov 23 2013 13:12:01

%S 96,664,4416,44528,370876,3508240,31802528,296151320,2734362948,

%T 25388000332,235309598120,2183618526324,20255876087096,

%U 187949259401812,1743794943568232,16179886188718672,150123298467390804

%N Number of (n+1)X(7+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or vertically, with no adjacent elements equal

%C Column 7 of A232406

%H R. H. Hardin, <a href="/A232405/b232405.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 23 2013

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)