OFFSET
1,3
COMMENTS
Table starts
.....1.........1...........1...........1..............1............1........1
.....2.........6..........14..........34.............78..........178......398
.....6........74.........852.......10210.........124466......1539739.19271229
....24......1880......152922....13745475.....1301306034.128342085219
...120.....80316....62038644.55575194220.54180777470296
...720...5141864.47286888510
..5040.458608016
.40320
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..41
EXAMPLE
Some solutions for n=3 k=4
..1..2..0..0. .1..2..1..2. .0..1..2..1. .2..1..0..0. .1..2..1..2
..0..1..2..1. .0..2..0..0. .0..2..1..0. .2..0..1..2. .0..2..0..1
..1..2..2..0. .2..0..1..1. .0..2..2..1. .1..0..1..2. .0..1..2..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 24 2016
STATUS
approved