OFFSET
1,9
COMMENTS
Table starts
......1...........1...............1.................1................1
......0...........0...............0.................0................0
......1...........2...............6................20...............83
......2..........38.............964.............30637..........1073367
......9........1197..........289569..........89795439......31745527110
.....44.......64497.......188978578......731926880418.3306610502435596
....265.....4975742....207181732018.11959316434000351
...1854...519665920.357677449791820
..14833.70425165645
.133496
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..60
EXAMPLE
Some solutions for n=4 k=4
..0..1..1..3....0..1..2..2....0..1..1..3....0..0..1..1....0..0..1..2
..0..1..3..2....3..1..0..0....3..3..3..2....3..3..0..3....0..3..1..0
..3..3..2..0....1..3..3..0....2..2..2..0....2..2..3..2....3..3..3..2
..1..2..2..0....3..1..2..2....1..1..0..0....1..1..2..0....1..2..1..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 01 2016
STATUS
approved