OFFSET
1,2
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..198
EXAMPLE
Table starts:
....1.........2..............5.................15......................51
....2........15............182...............2698...................41914
....5.......187..........10682.............658450................40883360
...15......2795.........667478..........163422914.............40039156736
...51.....43947.......42012698........40595679634..........39216100214432
..187....700075.....2646531062.....10084768380770.......38410047476679936
..715..11188907...166729574522...2505261257850802....37620564383817645696
.2795.178973355.10503950018198.622357842865595522.36847308431734650845696
...
Some solutions for n=4 and k=3:
..0..0..0....0..0..1....0..1..0....0..0..0....0..1..0....0..0..0....0..1..1
..0..1..0....0..0..0....0..2..2....0..1..1....0..2..3....0..1..2....0..0..0
..1..2..1....0..1..1....1..2..1....2..0..2....3..0..0....2..1..1....0..1..1
..0..1..3....1..2..3....1..3..2....2..1..0....2..1..3....0..1..1....0..2..1
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 26 2012
STATUS
approved