OFFSET
1,2
COMMENTS
Table starts
....1........2...........3.............7............20............67
....2........7..........34...........388..........6814........148168
....3.......34.........969.........64752.......5227536.....436214328
....7......388.......64752......17510800....4929510472.1392230785552
...20.....6814.....5227536....4929510472.4681590376584
...67...148168...436214328.1392230785552
..255..3518434.36601614264
.1079.86343148
.4987
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..49
EXAMPLE
Some solutions for n=3 k=4
..0..0..1..2....0..0..1..2....0..1..2..3....0..0..1..2....0..1..2..3
..2..2..3..4....2..3..1..4....4..1..5..3....2..3..4..2....4..5..5..4
..1..5..3..1....5..5..2..6....5..2..4..0....1..5..4..3....3..3..0..6
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 05 2013
STATUS
approved