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A221225 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some king-move neighbor 3
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 (list; table; graph; refs; listen; history; text; internal format)
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
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
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 05 2013
STATUS
approved

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Last modified April 20 09:30 EDT 2024. Contains 371799 sequences. (Running on oeis4.)