OFFSET
1,1
COMMENTS
Table starts
........256..........2976..........34734..........405132.........4726586
.......2976.........79260........2113860........56388240......1503850638
......34734.......2113860......129107036......7882228972....481223530251
.....405132......56388240.....7882228972...1102150639440.154055073024272
....4726586....1503850638...481223530251.154055073024272
...55128306...40110759152.29382547744580
..643062117.1069867016024
.7501428048
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..40
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 39]
EXAMPLE
Some solutions for n=2 k=4
..0..0..0..2..0....0..0..3..0..0....0..0..1..3..3....0..0..2..1..2
..0..0..2..1..3....0..0..3..1..0....0..1..0..0..0....0..1..0..1..1
..0..3..0..3..2....0..1..3..3..3....0..2..3..0..0....0..2..3..3..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 19 2014
STATUS
approved