OFFSET
1,2
COMMENTS
Table starts
...1....2.....4.......8.......16.........32..........64...........128
...2....6....14......35.......95........257.........700..........1907
...4...14....47.....156......548.......1970........7049.........25364
...8...35...156.....786.....3761......18725.......92578........463045
..16...95...548....3761....27236.....191615.....1353623.......9623424
..32..257..1970...18725...191615....1957026....19677729.....199877194
..64..700..7049...92578..1353623...19677729...282206549....4085687781
.128.1907.25364..463045..9623424..199877194..4085687781...84346447443
.256.5202.91307.2308299.68454701.2025592349.58997871413.1737667793009
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..199
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1)
k=2: a(n) = 2*a(n-1) +3*a(n-2) -2*a(n-3) -2*a(n-4) -a(n-6) +a(n-7)
k=3: [order 23] for n>25
k=4: [order 83] for n>85
EXAMPLE
Some solutions for n=5 k=4
..0..1..1..1. .0..0..0..0. .0..0..1..1. .0..0..0..0. .0..0..0..0
..1..1..0..0. .0..1..1..0. .0..1..1..1. .0..0..1..1. .1..0..0..1
..0..1..0..0. .1..0..0..1. .1..1..1..1. .1..0..1..1. .0..0..0..0
..1..0..1..0. .1..1..1..1. .0..0..0..0. .0..1..0..1. .0..0..1..0
..1..1..0..0. .1..1..0..1. .0..0..0..1. .0..0..0..1. .0..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 12 2018
STATUS
approved