OFFSET
1,1
COMMENTS
Table starts
.....51.......309........1899.........11709............72243.............445797
....309......3921.......50831........663307..........8671957..........113445117
...1899.....50831.....1401453......39019417.......1089569635........30455338423
..11709....663307....39019417....2324761359.....139048718681......8328173688589
..72243...8671957..1089569635..139048718681...17831423507215...2290637311033759
.445797.113445117.30455338423.8328173688589.2290637311033759.631348219277725029
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..144
FORMULA
Empirical for column k:
k=1: a(n) = 6*a(n-1) +3*a(n-2) -12*a(n-3)
k=2: [order 7]
k=3: [order 21]
k=4: [order 60]
EXAMPLE
Some solutions for n=2 k=4
..0..0..1..1..2....0..1..1..0..1....0..1..1..2..1....0..0..1..2..1
..2..1..2..1..1....1..1..2..2..1....2..0..2..0..2....2..2..2..0..0
..0..2..0..1..1....2..0..0..0..1....1..2..0..2..1....1..0..0..2..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 01 2014
STATUS
approved