OFFSET
1,2
COMMENTS
Table starts
...0......3.........3............9..............15..................33
...3.....15........81..........423............2247...............11925
...3.....81.......987........13401..........178311.............2381469
...9....423.....13401.......453837........15269193...........514371027
..15...2247....178311.....15269193......1296261759........110203382331
..33..11925...2381469....514371027....110203382331......23643209345079
..63..63291..31783299..17324310663...9366963651897....5071373978989773
.129.335943.424240833.583513743897.796197119067381.1087831682400037245
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..112
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +2*a(n-2)
k=2: a(n) = 5*a(n-1) +2*a(n-2) -a(n-3) -5*a(n-4)
k=3: [order 15]
k=4: [order 53]
EXAMPLE
Some solutions for n=3 k=4
..0..1..2..0....1..1..0..1....1..1..2..0....1..1..1..1....1..1..1..2
..2..1..1..1....2..2..2..1....1..2..1..1....1..0..2..0....0..2..0..0
..1..1..2..0....0..0..2..1....1..0..0..2....0..2..1..1....2..1..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 01 2013
STATUS
approved