OFFSET
1,1
COMMENTS
Table starts
.....3..........11...............28..................56....................99
....13.........192.............1320................5470.................17499
....70........7827...........208072.............2322599..............16537086
...529......750261........109820000..........4286833981...........83545858925
..5148...168382284.....193946752094......34389632236877......2256314178023600
.68798.88681187619.1146407046198040.1199143411128185584.325754552781442854792
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..73
EXAMPLE
Some solutions for n=4 k=4
..0..4..0..2..3....1..2..4..4..0....2..4..3..3..2....3..4..3..1..2
..4..2..0..3..3....2..1..3..4..1....4..2..3..3..1....4..2..2..1..0
..0..0..4..3..1....4..3..2..1..0....3..3..2..2..3....3..2..3..4..2
..2..3..3..2..0....4..4..1..0..0....3..3..2..3..2....1..1..4..2..4
..3..3..1..0..4....0..1..0..0..4....2..1..3..2..2....2..0..2..4..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jun 18 2012
STATUS
approved