OFFSET
1,5
COMMENTS
Table starts
.0.....0.......0...........0..............0.................0.................0
.0.....2.......6..........26............118...............522..............2310
.0.....6......34.........514...........5838.............64838............722386
.0....26.....514.......18218.........517794..........15075834.........442507578
.0...118....5838......517794.......38111288........2905031942......220881339818
.0...522...64838....15075834.....2905031942......575915716590...113395635811566
.0..2310..722386...442507578...220881339818...113395635811566.57955254721687188
.0.10234.8040426.12967930114.16727315344402.22307089878854146
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..97
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = 4*a(n-1) +a(n-2) +4*a(n-3)
k=3: [order 13]
k=4: [order 63]
EXAMPLE
Some solutions for n=3 k=4
..0..1..1..0....0..1..2..3....0..1..0..3....0..1..2..1....0..3..0..1
..1..2..2..1....3..2..3..0....3..2..2..3....1..2..3..2....1..2..1..2
..0..3..3..0....2..1..2..1....3..0..1..0....0..1..0..1....2..3..0..3
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 13 2013
STATUS
approved