OFFSET
1,2
COMMENTS
Table starts
....0.......10...........52..............82.................432
....4.......34..........320............2958...............27692
....8......194.........4928...........68310.............1825972
...12.....1034........62276.........1827866...........115154048
...32.....4986.......761860........49501666..........7517844304
...84....24498......9880580......1295371950........485354122160
..184...122994....123587140.....34359557398......31320663237216
..412...613658...1571314692....911287659098....2024849938767040
..976..3048362..19864803028..24111990771426..130826030730696144
.2276.15169602.251467184100.638690599346926.8452502440791870368
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..127
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) -a(n-2) +4*a(n-3)
k=2: a(n) = 4*a(n-1) -a(n-2) +26*a(n-3) +16*a(n-4)
k=3: [order 8]
k=4: [order 18]
k=5: [order 34] for n>35
k=6: [order 75] for n>77
Empirical for row n:
n=1: a(n) = 4*a(n-2) +28*a(n-3) +80*a(n-4) +48*a(n-5) -67*a(n-6) -228*a(n-7) -224*a(n-8)
n=2: [order 29] for n>30
EXAMPLE
Some solutions for n=3 k=4
..0..1..2..0..1....2..1..0..0..1....0..1..2..1..0....2..1..0..0..0
..2..1..2..2..1....0..0..1..2..2....0..1..0..2..1....2..2..1..1..0
..0..1..1..0..0....2..1..2..1..0....0..1..0..0..0....2..1..2..2..2
..2..1..0..1..2....0..1..2..1..2....2..1..2..1..2....0..0..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 02 2013
STATUS
approved