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A221688 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some king-move neighbor, without consecutive moves in the same direction 1

%I #3 Jan 22 2013 06:46:49

%S 1,3,3,6,35,6,13,396,396,13,28,4429,17480,4429,28,60,49387,780692,

%T 780692,49387,60,129,550264,34704624,140268025,34704624,550264,129,

%U 277,6129659,1542552756

%N T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some king-move neighbor, without consecutive moves in the same direction

%C Table starts

%C ...1......3........6........13.......28.........60.....129.277

%C ...3.....35......396......4429....49387.....550264.6129659

%C ...6....396....17480....780692.34704624.1542552756

%C ..13...4429...780692.140268025

%C ..28..49387.34704624

%C ..60.550264

%C .129

%e Some solutions for n=3 k=4

%e ..0..1..2..0....0..1..0..1....0..4..0..0....0..4..1..0....0..2..3..0

%e ..0..3..1..0....0..3..0..3....0..1..4..0....0..2..0..2....0..3..3..0

%e ..0..5..0..0....0..0..4..0....0..3..0..0....1..2..0..0....1..0..0..0

%Y Column 1 is A002478

%K nonn,tabl

%O 1,2

%A _R. H. Hardin_ Jan 22 2013

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)