OFFSET
1,3
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..86
EXAMPLE
Table starts:
...1.............1..................1......................1
...3.............4..................4......................4
...6............59................116....................131
..12..........1851..............16556..................43785
..23........119548............7721920...............79201795
..43......16039294........11525456507...........627974590650
..79....4460214471.....54979732214116......21399815343394998
.143.2572187445993.838387866908847478.3132305932642809585983
Some solutions for n=4 and k=3:
..0........0........0........0........0........0........0........0
..1.2......1.0......1.0......1.0......0.1......1.2......1.0......1.2
..3.1.1....0.1.0....2.0.3....2.3.1....2.3.0....1.3.3....2.3.3....0.3.1
..2.3.2.0..2.1.3.1..2.1.0.1..1.0.3.2..3.0.3.1..3.1.1.2..0.2.2.0..2.1.2.1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Aug 28 2011
STATUS
approved