OFFSET
1,8
COMMENTS
Table starts
....0........0..........0...........1............2.............9............34
....0........0.........12.........139.........1222..........9151.........63138
....0.......12........443........8489.......105368.......1113148......10598099
....1......139.......8489......197429......3291920......47427679.....622370435
....2.....1222.....105368.....3291920.....76670685....1545796513...28420462973
....9.....9151....1113148....47427679...1545796513...43504627489.1115818883427
...34....63138...10598099...622370435..28420462973.1115818883427
..124...412070...94350141..7668286112.491401215701
..432..2585022..800540848.90290912746
.1464.15739317.6552843938
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..84
FORMULA
Empirical for column k:
k=1: a(n) = 6*a(n-1) -6*a(n-2) -16*a(n-3) +12*a(n-4) +24*a(n-5) +8*a(n-6) for n>10
k=2: [order 10] for n>12
k=3: [order 35] for n>45
EXAMPLE
Some solutions for n=4 k=4
..0..1..2..0. .0..0..1..0. .0..1..2..1. .0..1..0..1. .0..1..1..0
..0..1..2..0. .2..0..1..2. .0..2..0..0. .0..2..0..1. .0..2..2..0
..2..2..1..2. .1..2..2..1. .0..1..1..2. .1..2..2..2. .1..0..0..1
..0..1..0..2. .1..0..0..2. .0..2..0..1. .0..1..0..1. .1..2..0..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 18 2017
STATUS
approved