A221776 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some king-move neighbor, without move-in move-out left turns

1, 3, 3, 8, 35, 8, 21, 372, 372, 21, 55, 3943, 16384, 3943, 55, 144, 41745, 703148, 703148, 41745, 144, 377, 441877, 30088757, 120493257, 30088757, 441877, 377, 987, 4677106, 1287149604, 20501683580, 20501683580, 1287149604, 4677106, 987, 2584

Offset

1,2

Comments

Table starts

...1.......3..........8..........21..........55...........144.........377

...3......35........372........3943.......41745........441877.....4677106

...8.....372......16384......703148....30088757....1287149604.55062005315

..21....3943.....703148...120493257.20501683580.3483716568676

..55...41745...30088757.20501683580

.144..441877.1287149604

.377.4677106

.987

Links

R. H. Hardin, Table of n, a(n) for n = 1..40

Example

Some solutions for n=3 k=4
..0..0..1..1....0..3..0..1....0..0..0..1....0..1..1..3....0..1..0..2
..0..3..1..0....0..3..1..4....0..3..2..1....0..0..0..0....0..2..0..3
..2..3..0..1....0..0..0..0....2..2..0..1....0..6..1..0....1..1..2..0

Crossrefs

Column 1 is A001906

Sequence in context: A221001 A222093 A221165 * A221225 A119006 A248241

Adjacent sequences: A221773 A221774 A221775 * A221777 A221778 A221779

Keyword

nonn,tabl

Author

R. H. Hardin Jan 25 2013

Status

approved