OFFSET
1,7
COMMENTS
Table starts
....0........1............0..............3...............6...............24
....1........0...........15............222............2348............21302
....0.......15..........668..........21430..........539596.........12335295
....3......222........21430........1585524.......102868091.......6167352480
....6.....2348.......539596......102868091.....17596660798....2810209481878
...24....21302.....12335295.....6167352480...2810209481878.1203474431523240
...72...176125....263171408...349780411336.427316604639150
..232..1370378...5359546513.19062177795838
..720.10206549.105415261452
.2232.73563740
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..71
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>8
k=2: [order 12] for n>13
k=3: [order 33] for n>35
EXAMPLE
Some solutions for n=3 k=4
..0..1..1..2. .0..1..0..1. .0..0..1..0. .0..0..1..2. .0..1..0..2
..2..1..0..1. .1..2..2..0. .0..1..1..2. .2..0..0..1. .2..1..0..2
..2..2..1..0. .1..1..2..2. .2..1..2..2. .2..0..1..0. .2..2..1..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 14 2016
STATUS
approved