OFFSET
1,5
COMMENTS
Table starts
..0.....1........1..........2............3..............5.................8
..1.....7.......25.........98..........383...........1493..............5824
..1....25......132........919.........6030..........39985............264680
..2....98......919......11142.......129452........1510278..........17617201
..3...383.....6030.....129452......2617757.......53422574........1088558635
..5..1493....39985....1510278.....53422574.....1909062568.......68109190612
..8..5824...264680...17617201...1088558635....68109190612.....4251930563544
.13.22717..1752681..205511593..22189910134..2430866826404...265585355341963
.21.88609.11604776.2397335154.452276452312.86749580967244.16586555684575766
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +a(n-2)
k=2: a(n) = 3*a(n-1) +3*a(n-2) +2*a(n-3)
k=3: [order 9] for n>10
k=4: [order 28] for n>29
EXAMPLE
Some solutions for n=5 k=4
..0..0..0..1. .0..0..0..1. .0..1..0..0. .0..1..1..0. .0..0..1..1
..1..1..1..0. .0..1..1..1. .0..0..1..1. .0..0..1..1. .1..0..0..0
..1..1..1..1. .1..1..0..0. .0..1..1..1. .1..0..0..0. .0..0..0..1
..0..1..1..0. .1..0..0..0. .1..0..1..0. .1..0..0..1. .1..0..0..0
..1..1..1..0. .0..0..0..1. .0..0..0..0. .1..0..0..1. .1..0..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jun 15 2018
STATUS
approved