OFFSET
1,1
COMMENTS
Table starts
........81.........426..........2285..........12076...........64277
.......426........3188.........23788.........178232.........1338314
......2285.......23788........259396........2832926........31409880
.....12076......178232.......2832926.......46692992.......775050154
.....64277.....1338314......31409880......775050154.....19605710895
....340944....10041714.....343725916....12823407292....488730626484
...1814328....75235940....3791095422...211713828688..12281928596332
...9631020...563994510...41527455416..3511115688000.307621332573176
..51194672..4230366698..459098074574.58239156471582
.271870052.31726827262.5029066110784
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..84
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 13]
k=2: [order 36] for n>37
EXAMPLE
Some solutions for n=2 k=4
..1..0..1..0..1....0..2..0..2..2....1..2..0..0..1....0..0..0..2..2
..0..2..1..1..0....1..1..2..0..1....0..0..0..0..0....2..2..0..2..0
..0..2..0..0..2....1..0..1..2..1....0..2..2..0..0....2..2..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 30 2014
STATUS
approved