OFFSET
1,1
COMMENTS
Table starts
.................4......................9......................16
................20....................141.....................580
...............152...................4743...................59008
..............1984.................378999................18555136
.............50176...............77470101.............19210448896
...........2677760............43182942669..........68711440384000
.........306864128.........69704886620367......884085911344119808
.......73913860096.....343603587128867631.42474221110291056295936
....36612251582464.5351921330163734358189
.36818799747399680
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..61
EXAMPLE
Some k=3 solutions for 4X4
..0..2..3..0....0..2..2..2....0..0..3..0....0..1..2..0....0..3..0..1
..3..0..2..2....1..0..2..1....1..0..2..2....2..0..1..3....3..0..2..1
..2..2..0..2....3..2..0..0....1..3..0..3....1..1..0..0....1..1..0..0
..2..1..3..0....2..0..1..0....2..1..3..0....1..3..0..0....2..0..2..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 09 2011
STATUS
approved