OFFSET
1,1
COMMENTS
Table starts
.......81.........450..........2500...........11100............49284
......450........5295.........65497..........606279..........5672018
.....2500.......65497.......1762344........37115629........785712765
....11100......606279......37115629......1957598978.....105025440136
....49284.....5672018.....785712765....105025440136...14016254732529
...192474....42941705...13504013024...4689618011086.1644246638168226
...751689...326261718..235332193767.213149442840795
..2707641..2114123393.3433774399772
..9753129.13717203464
.33291180
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..60
EXAMPLE
Some solutions for n=2 k=4
..2..0..0..0..0....1..1..0..2..0....1..0..0..1..0....0..0..0..0..0
..2..1..2..0..0....1..1..0..0..0....2..2..1..1..1....1..2..0..0..0
..0..2..2..0..1....0..2..2..1..0....1..0..1..1..0....2..1..0..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 10 2014
STATUS
approved