OFFSET
1,2
COMMENTS
Table starts
...1......2........4..........8............16..............32
...2......8.......32........128...........512............2048
...4.....32......227.......1642.........11888...........86123
...8....128.....1642......22087........297071.........4001253
..16....512....11888.....297071.......7411398.......185302633
..32...2048....86123....4001253.....185302633......8607101770
..64...8192...624007...53909088....4634931975....400012077773
.128..32768..4521433..726363190..115940148451..18591844096646
.256.131072.32761769.9787119222.2900256951630.864147943636240
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1)
k=2: a(n) = 4*a(n-1)
k=3: [order 8]
k=4: [order 24]
k=5: [order 89]
EXAMPLE
Some solutions for n=5 k=5
..0..0..0..0..0. .0..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..0..1..1..0. .0..1..0..0..0
..1..0..0..1..0. .1..1..1..1..0. .0..0..0..1..0. .0..0..1..1..1
..1..1..0..1..0. .1..1..0..0..0. .0..1..1..1..1. .0..1..1..0..0
..1..1..0..1..1. .0..0..0..1..0. .0..0..0..1..0. .0..0..1..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 15 2018
STATUS
approved