OFFSET
1,1
COMMENTS
Table starts
......86........561..........2799..........11642..........42136........135738
.....561......14229........268376........3995189.......49913678.....534194881
....2799.....268376......21120269.....1275396109....63029738888.2626194720041
...11642....3995189....1275396109...318928128419.64508132038992
...42136...49913678...63029738888.64508132038992
..135738..534194881.2626194720041
..398282.5028662366
.1080962
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..38
EXAMPLE
Some solutions for n=2 k=4
..2..0..1..0..2....0..0..1..1..1....0..0..0..2..0....3..0..0..0..0
..0..0..1..2..3....0..0..1..1..3....2..0..0..3..1....0..0..1..0..2
..0..2..3..3..3....0..1..1..1..3....1..2..2..2..3....0..1..1..2..3
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 29 2013
STATUS
approved