OFFSET
1,1
COMMENTS
Table starts
..2...2....2.....2.......2.........2..........2............2.............2
..3...4....5.....6.......7.........8..........9...........10............11
..4...7...12....19......28........39.........52...........67............84
..5..12...29....66.....137.......261........463..........775..........1237
..6..19...67...232.....735......2090.......5371........12645.........27639
..7..29..147...794....4074.....18808......77320.......285494........959672
..8..42..303..2574...22128....175180....1231170......7652503......42460424
..9..59..590..7797..113677...1595005...20115063....223521350....2195862381
.10..80.1090.22058..544142..13720886..319006954...6568208183..119000455681
.11.106.1922.58469.2417707.109830369.4768598707.185724489849.6373048347212
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..163
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) -a(n-2)
k=2: a(n) = 3*a(n-1) -2*a(n-2) -2*a(n-3) +3*a(n-4) -a(n-5)
k=3: [order 12]
Empirical for row n:
n=1: a(n) = 2
n=2: a(n) = n + 2
n=3: a(n) = n^2 + 3
n=4: [polynomial of degree 5]
n=5: [polynomial of degree 9]
n=6: [polynomial of degree 19]
n=7: [polynomial of degree 34]
EXAMPLE
Some solutions for n=4 k=4
..0..0..0..0....0..0..0..1....0..0..0..0....0..0..0..0....0..0..0..1
..0..0..0..1....0..0..1..0....0..0..0..1....0..0..1..1....0..0..1..0
..0..1..1..0....1..1..0..0....1..1..1..0....1..1..0..0....1..1..0..0
..1..0..0..0....1..1..1..0....1..1..1..1....1..1..1..1....1..1..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 29 2015
STATUS
approved