OFFSET
1,2
COMMENTS
Table starts
...1......2........4...........8.............16...............32
...2......8.......32.........128............512.............2048
...4.....32......247........1924..........14981...........116654
...8....128.....1924.......29408.........448993..........6856789
..16....512....14981......448993.......13431706........401989538
..32...2048...116654.....6856789......401989538......23582064542
..64...8192...908360...104711327....12030404350....1383316377321
.128..32768..7073213..1599074414...360039414559...81146123707386
.256.131072.55077652.24419877459.10775053220325.4760069868306954
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..241
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1)
k=2: a(n) = 4*a(n-1)
k=3: a(n) = 7*a(n-1) +5*a(n-2) +9*a(n-3) -a(n-4) -6*a(n-5)
k=4: [order 14]
k=5: [order 31]
k=6: [order 89]
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..1
..0..1..1..1. .0..0..0..1. .1..0..0..0. .1..0..0..1. .0..0..1..0
..1..0..0..1. .0..1..1..0. .0..1..1..1. .1..1..0..0. .0..1..1..1
..1..0..1..0. .1..1..1..0. .0..0..0..0. .1..0..1..0. .1..0..0..1
..0..1..1..1. .1..0..1..0. .0..0..1..0. .0..0..0..0. .1..1..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 15 2018
STATUS
approved