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A221339 Number of nX3 arrays of occupancy after each element moves to some king-move neighbor, with no 2-loops and with no occupancy greater than 2 1

%I #4 Jan 11 2013 06:29:27

%S 0,85,1828,49197,1160820,27492106,645919942,15174148882,356331648780,

%T 8367682180712,196493019336142,4614084810633380,108347618798888098,

%U 2544188148240114963,59741469540161126266,1402814427562259789640

%N Number of nX3 arrays of occupancy after each element moves to some king-move neighbor, with no 2-loops and with no occupancy greater than 2

%C Column 3 of A221341

%H R. H. Hardin, <a href="/A221339/b221339.txt">Table of n, a(n) for n = 1..17</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Jan 11 2013

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