OFFSET
1,5
COMMENTS
Table starts
.1...1...1....1.....1......1.......1........1.........1..........1...........1
.1...2...4....7....12.....21......37.......65.......114........200.........351
.1...4...9...16....34.....76.....157......325.......692.......1459........3064
.1...7..16...32....91....237.....585.....1513......3908......10086.......26367
.1..12..34...91...341...1150....3775....12798.....43185.....146144......496975
.1..21..76..237..1150...5171...21087....90404....396578....1708355.....7449218
.1..37.157..585..3775..21087..108933...605121...3383481...18933967...108596954
.1..65.325.1513.12798..90404..605121..4342381..31360402..230562749..1738478648
.1.114.692.3908.43185.396578.3383481.31360402.296784399.2857761925.28501758381
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..220
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = 2*a(n-1) -a(n-2) +a(n-3)
k=3: [order 15]
k=4: [order 43]
EXAMPLE
Some solutions for n=7 k=4
..0..0..0..0. .0..0..0..0. .0..0..0..0. .1..1..1..1. .1..1..1..1
..1..1..1..1. .1..1..1..1. .0..1..1..0. .1..1..1..1. .1..1..1..1
..1..1..1..1. .1..1..1..1. .0..1..1..0. .0..0..0..0. .0..0..0..0
..0..0..0..0. .0..0..0..0. .0..0..0..0. .0..0..0..0. .0..0..1..1
..1..1..0..0. .0..1..1..0. .0..0..0..0. .1..1..1..1. .0..0..1..1
..1..1..0..0. .0..1..1..0. .0..0..1..1. .1..1..1..1. .0..0..1..1
..0..0..0..0. .0..0..0..0. .0..0..1..1. .0..0..0..0. .0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 06 2017
STATUS
approved