OFFSET
1,17
COMMENTS
Table starts
.0..0..0...0....0.....0......0.......0........0.........0...........0
.0..1..1...1....3.....2......6.......6.......11........16..........22
.0..1..0...3....3.....8.....16......32.......70.......135.........293
.0..1..3...3....4....22.....39.....102......298.......833........2105
.0..3..3...4...32....92....270....1262.....3561.....13976.......48859
.0..2..8..22...92...366...1592....6925....36101....161645......762469
.0..6.16..39..270..1592..12042...75739...490425...3084820....19634393
.0..6.32.102.1262..6925..75739..729062..5841423..53750463...469053654
.0.11.70.298.3561.36101.490425.5841423.70536528.833035233.10021999204
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..263
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = 2*a(n-2) +a(n-3) -a(n-4)
k=3: [order 14]
k=4: [order 43] for n>45
EXAMPLE
All solutions for n=5 k=4
..0..0..0..0. .0..0..1..1. .0..0..1..1. .0..0..1..1
..0..1..0..0. .0..1..1..0. .0..1..0..1. .0..0..1..0
..1..1..1..1. .0..0..0..0. .1..0..0..1. .1..1..0..0
..0..0..1..0. .0..1..1..0. .1..0..1..0. .1..0..1..1
..0..0..0..0. .1..1..0..0. .1..1..0..0. .0..0..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Mar 04 2018
STATUS
approved