OFFSET
1,1
COMMENTS
Table starts
.......14.........69..........358...........1844.............9522
.......69........417.........2688..........17406...........112830
......358.......2688........24428.........225216..........2085288
.....1844......17406.......225216........3024540.........40825266
.....9522.....112830......2085288.......40825266........808607717
....49108.....731610.....19292888......552336576......16045542980
...253476....4743680....178764936.....7474034016.....318968276357
..1307604...30758256...1654241464...101151676976....6333468781482
..6748036..199437026..15328190976..1368939009490..125923500067477
.34815556.1293154716.141847742984.18526939344118.2500354560114878
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..144
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +18*a(n-2) +16*a(n-3) +12*a(n-4) -12*a(n-5) for n>6
k=2: [order 8]
k=3: [order 23] for n>26
k=4: [order 62] for n>66
EXAMPLE
Some solutions for n=3 k=4
..0..0..1..1..0....0..0..0..1..0....0..0..0..1..2....0..0..0..1..2
..0..2..1..2..2....0..0..2..1..1....0..0..2..1..2....0..2..1..1..0
..1..1..2..0..2....2..0..1..1..1....1..1..2..2..0....1..1..2..0..1
..2..2..0..0..1....2..1..1..1..2....1..1..2..2..2....2..1..0..2..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 19 2014
STATUS
approved