OFFSET
1,4
COMMENTS
Table starts
.1....1.......2.........4.........12........36.........144......576.2880
.1....3......15.......130.......1944.....40188.....1149120.49148112
.1....6.....170......9656....1369408.275062400.89203565824
.1...23....3089...1685728.1816673024
.1..112..106568.410210112
.1..561.4676432
.1.3519
.2
EXAMPLE
Some solutions for n=3 k=4
..0..1..7..9....0..9..1..7....0..1..9..7....8..7..1..9....9..7..1..3
..4..8..2.10....8..2..3.11....2..4.10..8....2..0..4.10...10..0..2..4
..6.11..3..5....4..6.10..5....6..5..3.11....6..3..5.11....6..8..5.11
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 25 2015
STATUS
approved