OFFSET
1,1
COMMENTS
Table starts
.....80....307...1157...1899...7191..24718..70726.277992..996500.3558732
....307...1326...3147...2745...8114..29959.111707.425010.1602835.6076455
...1157...3147....608...1587...2632...9290..34964.124697..471260.1787757
...1899...2745...1587...1482...3270..11364..33788.125749..476619.1783368
...7191...8114...2632...3270...6494..11338..35990.132258..473380.1786812
..24718..29959...9290..11364..11338..18410..47369.133889..481694.1808046
..70726.111707..34964..33788..35990..47369..66580.159783..520508.1817618
.277992.425010.124697.125749.132258.133889.159783.265906..597389.1914547
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..241
FORMULA
Empirical for column k:
k=1: (order 33 recurrence)
k=2..7: a(n) = 4*a(n-1) +a(n-2) -2*a(n-3) -19*a(n-4) -4*a(n-5) +21*a(n-6) +24*a(n-7) +3*a(n-8) -18*a(n-9) -9*a(n-10) for n>13
EXAMPLE
Some solutions for n=3 k=3
..0..1..1..1..1....0..1..1..2..0....0..0..1..2..1....0..1..2..1..0
..0..1..1..0..1....0..1..1..1..1....0..0..1..2..1....0..1..2..1..0
..0..1..1..0..1....0..1..1..0..1....0..0..1..2..1....0..1..2..1..0
..0..1..1..0..1....1..1..1..0..1....0..0..1..2..1....0..1..2..1..0
..0..1..1..0..1....2..1..1..0..1....0..0..1..2..1....0..1..2..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 15 2012
STATUS
approved