OFFSET
1,5
COMMENTS
Table starts
.0...0.....0.......0.........0...........0............0..............0
.0...2.....2......10........22..........70..........186............538
.0...2....14......34.......198.........810.........3706..........16918
.0..10....34.....388......2722.......23884.......190364........1588552
.0..22...198....2722.....40762......579218......8554562......124839450
.0..70...810...23884....579218....15392914....400106488....10548244824
.0.186..3706..190364...8554562...400106488..18831479468...887265863604
.0.538.16918.1588552.124839450.10548244824.887265863604.75228804427354
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..143
FORMULA
Empirical for column k:
k=2: a(n) = 2*a(n-1) +3*a(n-2) -2*a(n-3)
k=3: [order 11]
k=4: [order 44] for n>45
EXAMPLE
Some solutions for n=4 k=4
..0..1..0..3....0..1..0..3....0..3..2..3....0..3..2..3....0..3..2..3
..3..2..1..2....3..2..1..2....1..0..1..0....1..2..1..0....1..2..1..0
..2..3..2..3....0..3..0..3....2..3..0..3....2..3..0..1....0..3..2..3
..1..0..1..0....1..2..1..0....1..0..1..2....1..0..3..2....1..2..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 31 2013
STATUS
approved