OFFSET
1,2
COMMENTS
Table starts
....1.......2...........4.............11...............30................82
....2.......9..........50............285.............1617..............9188
....4......50.........571...........6727............78800............924579
...11.....285........6727.........164326..........3992071..........97147710
...30....1617.......78800........3992071........201054068.......10144351660
...82....9188......924579.......97147710......10144351660.....1061399606602
..224...52193....10844773.....2363431872.....511688896140...111020011111453
..612..296511...127214104....57503068637...25812250379197.11613529410292966
.1672.1684466..1492251709..1399048151083.1302084964081326
.4568.9569425.17504551617.34038954765446
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..97
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) +2*a(n-2) for n>4
k=2: a(n) = 6*a(n-1) -11*a(n-3) +4*a(n-4) for n>5
k=3: [order 12]
k=4: [order 44]
EXAMPLE
Some solutions for n=4 k=4
..0..1..2..1. .0..0..1..2. .0..1..2..0. .0..1..2..0. .0..1..0..2
..0..2..1..0. .1..2..0..2. .0..2..1..2. .1..0..2..1. .0..2..1..2
..1..0..0..1. .2..1..2..1. .1..1..2..1. .0..2..0..1. .2..1..2..1
..0..2..2..1. .0..1..2..0. .0..0..1..0. .0..1..1..0. .2..0..2..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 01 2017
STATUS
approved