OFFSET
1,1
COMMENTS
Table starts
......7........18............60...............168...................528
.....18.......102...........642..............4086.................26034
.....60.......642.........11538............144582...............2663082
....168......4086........144582...........5336844.............198634758
....528.....26034.......2663082.........198634758...........22029652542
...1536....165894......33590454........7399451382.........1657797796530
...4704...1057122.....616998282......275682413748.......184125991023066
..13920...6736278....7808992566....10271315554206.....13859263865786022
..42144..42925458..142965076362...382687513971798...1539229991488330446
.125664.273533094.1815370659126.14258133000231516.115867585607831455650
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..238
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +6*a(n-2)
k=2: a(n) = 7*a(n-1) -4*a(n-2)
k=3: a(n) = 2*a(n-1) +231*a(n-2) -430*a(n-3) -286*a(n-4) +180*a(n-5)
k=4: a(n) = 40*a(n-1) -80*a(n-2) -869*a(n-3) +1566*a(n-4) +1650*a(n-5) -1796*a(n-6) for n>7
k=5: [order 16]
k=6: [order 24] for n>25
k=7: [order 59]
EXAMPLE
Some solutions for n=3 k=4
..1..0..1..2....0..2..0..1....0..6..0..2....1..0..6..0....0..5..6..0
..0..5..0..1....2..0..4..0....6..0..5..0....0..6..0..4....3..0..5..6
..2..0..1..0....0..4..0..2....0..4..0..3....6..0..5..0....0..2..0..5
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 18 2013
STATUS
approved