OFFSET
1,2
COMMENTS
Table starts
...1.....2.......4.........7..........12............21..............37
...2....10......29........87.........280...........876............2735
...4....29.....140.......741........3853.........19956..........104096
...7....87.....741......6686.......59126........528282.........4738235
..12...280....3853.....59126......898493......13706771.......209181266
..21...876...19956....528282....13706771.....355281224......9248214732
..37..2735..104096...4738235...209181266....9248214732....411280569141
..65..8583..541775..42321441..3184995895..240292442848..18227207589288
.114.26900.2819027.378112132.48548926944.6243986963713.807975522778623
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..287
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) -a(n-2) +a(n-3)
k=2: a(n) = 2*a(n-1) +2*a(n-2) +5*a(n-3) -a(n-5) -a(n-6)
k=3: [order 15]
k=4: [order 34]
k=5: [order 91]
EXAMPLE
Some solutions for n=4 k=4
..0..1..1..0. .0..0..0..0. .1..1..0..0. .0..1..0..0. .0..0..0..0
..0..1..0..0. .1..0..0..1. .0..0..1..1. .0..1..0..0. .0..1..1..1
..0..0..0..0. .1..1..0..1. .0..0..0..1. .0..0..0..1. .0..1..0..1
..1..1..1..1. .0..1..1..0. .0..0..1..1. .0..0..0..1. .0..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 12 2017
STATUS
approved