OFFSET
1,1
COMMENTS
Table starts
........81.........484.........2932.........17824........108272........655100
.......484........4500........41980........394380.......3668492......34234336
......2932.......41980.......608656.......8891884.....128476048....1869749396
.....17824......394380......8891884.....204824360....4639468308..106762847796
....108272.....3668492....128476048....4639468308..164401921546.5963465890608
....655100....34234336...1869749396..106762847796.5963465890608
...3970468...319904840..27242456824.2451445050484
..24093844..2991463632.396368005036
.146112996.27901011760
.885471428
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..60
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 11]
k=2: [order 38] for n>39
EXAMPLE
Some solutions for n=2 k=4
..0..0..2..0..2....0..2..0..0..1....0..0..1..0..2....0..1..1..2..1
..1..0..2..2..0....2..0..0..1..0....2..0..2..1..0....0..1..1..0..2
..0..2..2..1..0....0..1..0..1..1....0..2..2..0..0....2..0..0..2..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 29 2014
STATUS
approved