OFFSET
1,2
COMMENTS
Table starts
.0......3.........3.............9...............15...................33
.0.....15........87...........513.............3387................21933
.0.....81......1173.........18915...........340563..............6081561
.0....423.....17271........730503.........37034355...........1844154933
.0...2247....251595......28368687.......4022141121.........559929294657
.0..11925...3669765....1100265795.....436827078531......169908632412447
.0..63291..53519163...42681522741...47444197636239....51564141085334199
.0.335943.780527655.1655698076319.5152946201086569.15648664251672721725
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..126
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = 5*a(n-1) +2*a(n-2) -a(n-3) -5*a(n-4)
k=3: a(n) = 14*a(n-1) +9*a(n-2) -9*a(n-3) +30*a(n-4) -19*a(n-5)
k=4: [order 32]
k=5: [order 80]
Empirical for row n:
n=1: a(n) = a(n-1) +2*a(n-2)
n=2: a(n) = 5*a(n-1) +6*a(n-2) +20*a(n-3) +12*a(n-4) +8*a(n-5)
n=3: [order 15] for n>16
n=4: [order 64] for n>65
EXAMPLE
Some solutions for n=3 k=4
..0..2..0..2....2..0..0..2....2..0..1..2....0..0..0..2....1..1..1..1
..0..0..1..1....0..1..0..2....1..1..0..1....2..2..0..1....1..2..1..2
..2..2..0..1....1..2..1..2....1..1..1..2....2..0..1..2....2..0..0..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 27 2013
STATUS
approved