OFFSET
1,1
COMMENTS
Table starts
..2....3.....4........7.........10..........15..........24.........35
..3....5.....8.......19.........36..........57.........120........218
..4...11....20......107........186.........450........1641.......2788
..7...25....67......676.......1328........5701.......24419......52676
.10...62...254.....3993......11742.......88214......536744....1652584
.15..144...825....22412.....108201.....1608415....12812998...70360014
.24..329..2667...131005....1056699....30542203...417799464.3795213209
.35..775..8652...731518...10526838...584983851.14482686630
.54.1781.27929..4144347..107361960.11643589675
.83.4150.91436.23263202.1116331018
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..112
FORMULA
Empirical for column k:
k=1: a(n) = a(n-2) +2*a(n-3)
k=2: [order 34] for n>36
Empirical for row n:
n=1: a(n) = a(n-2) +2*a(n-3)
n=2: [order 17] for n>19
EXAMPLE
Some solutions for n=4 k=4
..2..2..3..2....2..2..3..3....2..2..3..3....2..2..3..3....2..2..3..3
..0..2..1..1....0..2..2..3....0..2..1..1....0..0..2..2....0..2..1..1
..0..2..2..3....2..0..0..2....2..2..3..3....2..0..1..3....0..2..2..2
..0..0..2..2....3..2..3..2....3..1..2..1....3..1..2..2....0..2..0..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Apr 02 2014
STATUS
approved