A221225 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some king-move neighbor

1, 3, 3, 8, 35, 8, 21, 400, 400, 21, 55, 4525, 18768, 4525, 55, 144, 51025, 867776, 867776, 51025, 144, 377, 574800, 39983152, 161854465, 39983152, 574800, 377, 987, 6473175, 1840507104, 29983033601, 29983033601, 1840507104, 6473175, 987, 2584

Offset

1,2

Comments

Table starts

...1.......3..........8..........21..........55........144.........377......987

...3......35........400........4525.......51025.....574800.....6473175.72891475

...8.....400......18768......867776....39983152.1840507104.84698310960

..21....4525.....867776...161854465.29983033601

..55...51025...39983152.29983033601

.144..574800.1840507104

.377.6473175

.987

Links

R. H. Hardin, Table of n, a(n) for n = 1..39

Example

Some solutions for n=3 k=4
..0..4..1..0....0..1..3..0....0..4..0..3....0..1..2..4....0..3..0..1
..0..0..1..2....0..0..1..0....0..2..0..0....0..2..0..0....0..0..1..3
..0..2..2..0....0..5..1..1....1..0..0..2....0..0..1..2....0..4..0..0

Crossrefs

Column 1 is A001906

Sequence in context: A222093 A221165 A221776 * A119006 A248241 A109695

Adjacent sequences: A221222 A221223 A221224 * A221226 A221227 A221228

Keyword

nonn,tabl

Author

R. H. Hardin Jan 05 2013

Status

approved