OFFSET
1,4
COMMENTS
Table starts
.1.....1........2..........4..........12.........36..........144.......576.2880
.1.....3.......15........212........3712......96256......3423168.158521536
.1.....6......296......26304.....4689792.1263257856.603321053184
.1....36.....9024....7708608.15216574464
.1...288...492480.4137827328
.1..2240.30233088
.2.20736
EXAMPLE
Some solutions for n=3 k=4
..0..6..8..7....4..6..0..7....8..6..2..0....4..2..6..7....0..6..3..1
..2..4.10..1...10..2..8..1...10..1..5..3...10..8..0..1....8..2.10..7
..9..5.11..3....5.11..3..9....4..7.11..9...11..3..9..5....4..5.11..9
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 21 2015
STATUS
approved