OFFSET
1,2
COMMENTS
Table starts
...0.......3...........3..............9.................15
...3......27.........193...........1407..............10211
...3.....193........3787..........78849............1637019
...9....1407.......78849........4722977..........284444079
..15...10211.....1637019......284444079........49754476927
..33...73417....33908253....17072965263......8666440899433
..63..530771...704822331..1027868078181...1514677019365483
.129.3841171.14643857893.61861526624839.264644708761844781
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..112
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +2*a(n-2)
k=2: a(n) = 6*a(n-1) -2*a(n-2) +67*a(n-3) +62*a(n-4) +160*a(n-5) +40*a(n-6) +16*a(n-7)
k=3: [order 26] for n>27
k=4: [order 81] for n>82
EXAMPLE
Some solutions for n=3 k=4
..1..1..0..1....0..2..1..1....2..1..2..0....2..0..1..2....1..1..2..0
..0..0..1..2....0..0..2..1....0..0..1..0....1..1..0..1....0..1..1..2
..2..1..1..0....0..2..0..0....2..0..1..1....0..2..1..1....1..2..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 11 2013
STATUS
approved