OFFSET
1,1
COMMENTS
Table starts
.......205...........1940...............16842.................131432
......1940..........72423.............2634939...............77658673
.....16842........2634939...........499486878............74956749750
....131432.......77658673.........74956749750.........58500223468696
....940270.....1905833494.......9042090593477......36337203300044690
...6287755....40229386532.....909510089895106...18604524788467098072
..39889619...749063366121...78614554935810312.8110443447372955603425
.242721211.12535141537226.5968834286653520880
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..60
EXAMPLE
Some solutions for n=4 k=3
..3..4..3..3....2..1..2..3....3..1..0..4....3..3..2..2....0..3..4..0
..4..3..4..4....2..3..3..4....1..3..4..3....3..3..4..4....3..1..0..4
..3..4..4..4....1..4..4..3....3..4..3..1....2..4..4..4....1..3..4..4
..4..4..2..4....1..4..4..3....4..3..4..3....2..4..4..4....2..3..2..2
..4..4..2..4....3..3..1..4....4..4..3..0....2..4..4..4....2..3..4..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 07 2012
STATUS
approved