login
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
1, 3, 1, 6, 25, 1, 13, 232, 184, 1, 28, 2197, 5748, 1367, 1, 60, 20933, 201378, 153652, 10179, 1, 129, 198589, 6888458, 20246283, 4053833, 75782, 1, 277, 1885324, 236114556, 2568601026, 2007184132, 107220027, 564169, 1, 595, 17896442
OFFSET
1,2
COMMENTS
Table starts
.1.......3..........6...........13...........28...........60............129
.1......25........232.........2197........20933.......198589........1885324
.1.....184.......5748.......201378......6888458....236114556.....8089630790
.1....1367.....153652.....20246283...2568601026.326363935235.41397744561659
.1...10179....4053833...2007184132.938516646422
.1...75782..107220027.199492714651
.1..564169.2834169558
.1.4200043
.1
LINKS
EXAMPLE
Some solutions for n=3 k=4
..0..2..2..2....0..1..1..0....0..1..0..1....2..0..0..1....0..1..2..0
..1..1..2..0....1..1..3..1....0..2..0..2....0..4..3..0....0..1..4..0
..1..0..0..1....0..3..0..1....2..2..0..2....0..0..2..0....0..2..0..2
CROSSREFS
Column 2 is A221777
Row 1 is A002478
Sequence in context: A351106 A175291 A156363 * A283432 A157866 A221852
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 01 2013
STATUS
approved