OFFSET
1,1
COMMENTS
Table starts
..192...96...455...296..1376...880...4111...2622..12319...7854..36945...23550
...96..181...232...534...686..1589...2042...4751...6110..14239..18318...42705
..455..232..1340...682..4007..2030..12005...6074..35999..18206.107983...54606
..296..534...682..1581..2034..4711...6078..14101..18210..42271..54606..126799
.1376..686..4007..2034.12021..6090..36015..18222.107997..54618.323943..163806
..880.1589..2030..4711..6090.14181..18258..42351..54654.126861.163842..380391
.4111.2042.12005..6078.36015.18258.108141..54762.324087.163950.971925..491514
.2622.4751..6074.14101.18222.42351..54762.127581.164274.381111.491838.1141701
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..2380
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +3*a(n-2) -3*a(n-3) for n>10
k=2: a(n) = a(n-1) +3*a(n-2) -3*a(n-3) for n>11
k=3: a(n) = a(n-1) +3*a(n-2) -3*a(n-3) for n>12
k=4: a(n) = a(n-1) +3*a(n-2) -3*a(n-3) for n>13
k=5: a(n) = a(n-1) +3*a(n-2) -3*a(n-3) for n>14
k=6: a(n) = a(n-1) +3*a(n-2) -3*a(n-3) for n>15
k=7: a(n) = a(n-1) +3*a(n-2) -3*a(n-3) for n>16
apparently a(n-1)+3*a(n-2)-3*a(n-3) for n>k+9
EXAMPLE
Some solutions for n=4 k=3
..3..1..3..1....3..2..3..2....0..2..0..1....1..3..0..1....1..1..0..2
..1..3..1..3....2..3..2..3....2..0..2..0....1..0..3..0....3..0..1..0
..3..1..3..1....3..2..3..2....0..2..0..2....0..1..0..3....0..3..0..1
..1..3..1..3....2..3..2..3....1..0..2..0....1..0..1..0....2..0..3..0
..3..1..3..1....3..2..3..2....0..1..0..2....0..1..0..1....0..2..0..3
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 06 2012
STATUS
approved