OFFSET
1,2
COMMENTS
Table starts
...1.....2.......4..........7...........12.............21...............37
...2....12......43........145..........524...........1888.............6737
...4....43.....210.......1162.........6959..........39608...........226599
...7...145....1162......11478.......121477........1210458.........12227803
..12...524....6959.....121477......2323514.......40828110........732185986
..21..1888...39608....1210458.....40828110.....1231267842......38342595769
..37..6737..226599...12227803....732185986....38342595769....2094245366560
..65.24093.1305725..124103052..13222385649..1202783176853..115207878553368
.114.86250.7497482.1254382781.237236541596.37385385800350.6267132000869767
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..220
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) -a(n-2) +a(n-3)
k=2: a(n) = 3*a(n-1) -a(n-2) +11*a(n-3) -2*a(n-4) +8*a(n-5) -4*a(n-6)
k=3: [order 12]
k=4: [order 26]
k=5: [order 63]
EXAMPLE
Some solutions for n=4 k=4
..1..0..1..1. .0..1..1..0. .1..0..0..0. .0..0..1..1. .0..0..1..0
..0..1..0..1. .0..1..0..1. .1..0..0..0. .1..0..0..0. .0..0..0..1
..0..0..1..0. .1..0..0..1. .0..0..0..0. .0..1..0..0. .0..1..0..0
..0..0..1..0. .0..0..0..1. .0..0..1..1. .0..1..1..1. .1..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 18 2017
STATUS
approved