OFFSET
1,2
COMMENTS
Table starts
...1.....2.......3.........6.........12...........24.............48
...2.....9......24........72........216..........648...........1944
...3....24......90.......384.......1638.........6936..........29370
...6....72.....384......2376......14406........87780.........536406
..12...216....1638.....14406.....126540......1119744........9902040
..24...648....6936.....87780....1119744.....14362920......183551766
..48..1944...29370....536406....9902040....183551766.....3403449396
..96..5832..124416...3278016...87416934...2348053596....63272648886
.192.17496..527046..20027574..772181640..30087735576..1177544081274
.384.52488.2232600.122367012.6822635046.385522530402.21902996126304
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..240
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) for n>3
k=2: a(n) = 3*a(n-1) for n>3
k=3: a(n) = 4*a(n-1) +4*a(n-3) +a(n-4) for n>5
k=4: [order 9] for n>11
k=5: [order 25] for n>28
k=6: [order 81] for n>83
EXAMPLE
Some solutions for n=4 k=4
..0..1..2..0. .0..1..1..0. .0..1..2..0. .0..1..2..0. .0..1..1..2
..1..2..0..1. .1..1..0..2. .1..2..0..1. .2..2..0..0. .1..1..2..2
..2..0..1..2. .1..0..2..1. .2..0..1..2. .2..0..0..2. .1..2..2..0
..2..1..1..2. .2..0..1..1. .0..1..1..0. .0..0..2..1. .0..0..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jul 12 2016
STATUS
approved