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A221929 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns 7

%I #4 Feb 01 2013 05:08:13

%S 1,3,1,6,25,1,13,232,184,1,28,2197,5748,1367,1,60,20933,201378,153652,

%T 10179,1,129,198589,6888458,20246283,4053833,75782,1,277,1885324,

%U 236114556,2568601026,2007184132,107220027,564169,1,595,17896442

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

%C Table starts

%C .1.......3..........6...........13...........28...........60............129

%C .1......25........232.........2197........20933.......198589........1885324

%C .1.....184.......5748.......201378......6888458....236114556.....8089630790

%C .1....1367.....153652.....20246283...2568601026.326363935235.41397744561659

%C .1...10179....4053833...2007184132.938516646422

%C .1...75782..107220027.199492714651

%C .1..564169.2834169558

%C .1.4200043

%C .1

%H R. H. Hardin, <a href="/A221929/b221929.txt">Table of n, a(n) for n = 1..49</a>

%e Some solutions for n=3 k=4

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

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

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

%Y Column 2 is A221777

%Y Row 1 is A002478

%K nonn,tabl

%O 1,2

%A _R. H. Hardin_ Feb 01 2013

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Last modified March 28 04:55 EDT 2024. Contains 371235 sequences. (Running on oeis4.)