OFFSET
1,1
COMMENTS
Table starts
...2.....4......7.......13.........24...........44............81
...4....12.....29.......85........248..........664..........1897
...7....29....111......468.......1985.........8126.........33933
..13....85....468.....3159......20782.......130303........849983
..24...248...1985....20782.....212537......2022756......20337282
..44...664...8126...130303....2022756.....29547816.....453231742
..81..1897..33933...849983...20337282....453231742...10730354337
.149..5385.141664..5499124..202790850...6893592668..250993766141
.274.14924.588156.35347256.1998068553.103949473092.5814109226770
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..241
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +a(n-2) +a(n-3)
k=2: a(n) = a(n-1) +3*a(n-2) +9*a(n-3) -4*a(n-4) -12*a(n-5) -4*a(n-6)
k=3: [order 10]
k=4: [order 22]
k=5: [order 58]
EXAMPLE
Some solutions for n=4 k=4
..1..0..1..0. .1..0..1..1. .1..1..0..1. .0..0..1..0. .1..0..0..1
..1..0..0..1. .0..0..0..0. .0..0..0..0. .0..0..0..0. .0..1..0..1
..0..0..0..0. .0..0..0..0. .0..0..1..1. .1..1..0..0. .0..0..0..0
..1..1..0..0. .0..0..1..0. .1..0..1..1. .0..0..0..0. .0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 17 2017
STATUS
approved