OFFSET
1,5
COMMENTS
Table starts
...1.......1...........1.................1.....................2
...1.......2...........2.................5....................12
...2.......3..........15................42...................602
...2......10..........52...............726.................12840
...5......27.........877.............15144...............2387180
...5.....114........4140............502658..............99827160
..15.....409......115975..........18378580...........41521045376
..15....2066......678570.........950376664.........2751754706832
..52....9089....27644437.......52183667212......2063225889204272
..52...52922...190899322.....3788883495864....194478305002268064
.203..272947.10480142147...286529186194664.232628053298868289568
.203.1788850.82864869804.27420871472654064
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..124
EXAMPLE
Some solutions for n=4 k=4
..0..x..1..x....0..x..1..x....0..x..1..x....0..x..1..x....0..x..1..x
..x..2..x..3....x..2..x..3....x..0..x..2....x..2..x..3....x..2..x..0
..4..x..0..x....4..x..0..x....3..x..4..x....3..x..4..x....0..x..2..x
..x..5..x..4....x..1..x..5....x..3..x..4....x..5..x..2....x..3..x..4
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Sep 04 2012
STATUS
approved