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 A221817 T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns 7

%I #4 Jan 26 2013 07:12:43

%S 0,1,0,0,4,0,1,16,12,0,0,91,14,40,0,1,459,1041,379,136,0,0,2429,7320,

%T 29412,1052,460,0,1,12678,123644,854959,574706,11079,1556,0,0,66380,

%U 1271018,35948127,35993876,13076919,47390,5264,0,1,347305,17049353

%N T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns

%C Table starts

%C .0.....1......0.........1..........0..........1..........0...........1

%C .0.....4.....16........91........459.......2429......12678.......66380

%C .0....12.....14......1041.......7320.....123644....1271018....17049353

%C .0....40....379.....29412.....854959...35948127.1290833232.49447514716

%C .0...136...1052....574706...35993876.4744100774

%C .0...460..11079..13076919.2428955613

%C .0..1556..47390.280280821

%C .0..5264.361950

%C .0.17808

%C .0

%H R. H. Hardin, <a href="/A221817/b221817.txt">Table of n, a(n) for n = 1..59</a>

%e Some solutions for n=3 k=4

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

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

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

%Y Column 2 is A221652

%K nonn,tabl

%O 1,5

%A _R. H. Hardin_ Jan 26 2013

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Last modified September 23 15:35 EDT 2023. Contains 365554 sequences. (Running on oeis4.)