OFFSET
1,5
COMMENTS
Table starts
.0...0....0.....0......0.......0........0.........0..........0...........0
.0...2....2.....6.....16......44......124.......354.......1020........2956
.0...2....8....10.....38.....130......456......1610.......5740.......20556
.0...6...10....62....176.....734.....3034.....12962......55806......241462
.0..16...38...176....898....4350....22852....122740.....661598.....3593650
.0..44..130...734...4350...29446...201592...1388526....9649244....67351066
.0.124..456..3034..22852..201592..1807682..16202418..145774974..1316654208
.0.354.1610.12962.122740.1388526.16202418.188719562.2198502114.25739337218
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..199
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = 4*a(n-1) -2*a(n-2) -3*a(n-3) -a(n-4) for n>5
k=3: [order 12] for n>17
k=4: [order 46] for n>51
EXAMPLE
Some solutions for n=4 k=4
..0..1..2..1....0..1..3..0....0..1..2..1....0..3..0..3....0..1..2..1
..3..0..3..0....3..2..1..2....3..0..3..0....1..2..1..2....3..0..3..0
..2..1..2..1....1..3..0..3....2..1..2..1....0..3..0..3....2..1..2..3
..3..0..3..2....0..2..1..0....3..0..3..0....1..2..1..0....0..3..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 30 2013
STATUS
approved