OFFSET
1,2
COMMENTS
Table starts
...1..2...4....8....16.....32......64......128.......256........512........1024
...2..4...3....5.....8.....13......21.......34........55.........89.........144
...4..3...8....9....21.....42......81......165.......330........657........1317
...8..5...9...23....44....125.....313......773......1964.......4948.......12456
..16..8..21...44....88....359....1125.....3117.....10022......31545.......95424
..32.13..42..125...359...2081....9442....38020....174483.....785604.....3427907
..64.21..81..313..1125...9442...61454...342508...2212378...14109348....86477928
.128.34.165..773..3117..38020..342508..2431114..21261766..184273462..1497908640
.256.55.330.1964.10022.174483.2212378.21261766.257262996.3099570150.34685951835
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..420
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1)
k=2: a(n) = a(n-1) +a(n-2) for n>4
k=3: a(n) = a(n-1) +a(n-2) +2*a(n-3) for n>6
k=4: a(n) = a(n-1) +2*a(n-2) +5*a(n-3) +a(n-4) -2*a(n-5) -6*a(n-6) -4*a(n-7) for n>11
k=5: [order 7] for n>11
k=6: [order 16] for n>21
k=7: [order 46] for n>52
EXAMPLE
Some solutions for n=5 k=4
..0..0..0..0. .0..0..0..0. .0..0..0..0. .0..0..0..0. .0..0..0..0
..0..1..1..0. .0..1..1..0. .0..0..0..0. .0..0..1..0. .0..0..0..0
..1..0..0..1. .0..0..0..0. .0..1..0..0. .0..0..0..0. .0..0..1..0
..1..1..1..1. .0..0..0..0. .0..0..1..0. .0..1..0..0. .0..1..0..0
..1..1..1..1. .0..0..0..0. .0..0..0..1. .0..0..0..0. .0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jul 10 2018
STATUS
approved