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A221804 T(n,k)=Number of nXk arrays of occupancy after each element moves to some king-move neighbor, without 2-loops or left turns 3

%I #3 Jan 26 2013 06:37:49

%S 0,0,0,0,9,0,0,56,56,0,0,378,1107,378,0,0,2475,27692,27692,2475,0,0,

%T 16256,657057,2341962,657057,16256,0,0,106629,15710423,197382906,

%U 197382906,15710423,106629,0,0,699390,374768765,16607042116

%N T(n,k)=Number of nXk arrays of occupancy after each element moves to some king-move neighbor, without 2-loops or left turns

%C Table starts

%C .0......0........0.........0.........0...........0.........0......0.0

%C .0......9.......56.......378......2475.......16256....106629.699390

%C .0.....56.....1107.....27692....657057....15710423.374768765

%C .0....378....27692...2341962.197382906.16607042116

%C .0...2475...657057.197382906

%C .0..16256.15710423

%C .0.106629

%C .0

%e Some solutions for n=3 k=4

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

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

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

%K nonn,tabl

%O 1,5

%A _R. H. Hardin_ Jan 26 2013

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Last modified August 17 03:26 EDT 2024. Contains 375198 sequences. (Running on oeis4.)