OFFSET
1,5
COMMENTS
Table starts
.0.....0.......0..........0.............0................0..................0
.0.....2.......4.........13............36..............109................317
.0.....5......25........122...........661.............3723..............20736
.0....16.....136.......1461.........15728...........172091............1870365
.0....49.....839......16842........350649..........7466627..........157609938
.0...153....5013.....196726.......7974561........329985827........13538466880
.0...476...30370....2293193.....180592726......14526103064......1158266740087
.0..1483..183403...26748095....4093629985.....640011857446.....99182079495633
.0..4619.1108525..311952675...92770708201...28192246592564...8491049196878995
.0.14388.6699034.3638315600.2102508396678.1241921389868057.726961954823301592
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..287
FORMULA
Empirical for column k:
k=2: a(n) = 3*a(n-1) +a(n-2) -2*a(n-3) for n>4.
k=3: a(n) = 6*a(n-1) +3*a(n-2) -17*a(n-3) +19*a(n-5) -16*a(n-6) +8*a(n-7) for n>9.
k=4: [order 17] for n>19.
k=5: [order 44] for n>46.
k=6: [order 98] for n>101.
Empirical for row n:
n=2: a(n) = 2*a(n-1) +3*a(n-2) -a(n-3) +a(n-4).
n=3: [order 16].
n=4: [order 40].
EXAMPLE
Some solutions for n=4, k=4
..0..1..1..0. .0..1..0..1. .0..1..1..1. .0..1..0..1. .0..1..1..0
..0..0..1..0. .0..1..0..1. .0..0..0..0. .0..1..0..1. .0..0..1..0
..0..1..1..1. .0..1..0..1. .1..1..1..0. .0..0..0..1. .0..1..1..0
..0..0..0..0. .1..0..1..1. .1..0..0..1. .0..1..1..1. .1..0..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 16 2016
STATUS
approved