OFFSET
1,5
COMMENTS
Table starts
.1..1...1...1....1.....1.....1......1.......1.......1........1.........1
.1..2...3...4....6.....9....13.....19......28......41.......60........88
.1..3...5...7...13....23....37.....63.....109.....183......309.......527
.1..4...7..10...23....45....76....150.....293.....532.....1010......1942
.1..6..13..23...68...162...343....864....2075....4715....11332.....27032
.1..9..23..45..162...479..1198...3534...10374...28464....80600....233023
.1.13..37..76..343..1198..3300..11494...40212..124949...411819...1420725
.1.19..63.150..864..3534.11494..49634..205982..764169..3069413..12612285
.1.28.109.293.2075.10374.40212.205982.1039840.4709965.22551308.113142176
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..287
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = a(n-1) +a(n-3)
k=3: a(n) = a(n-1) +2*a(n-3)
k=4: a(n) = a(n-1) +4*a(n-3) -a(n-4) -2*a(n-6)
k=5: [order 50]
EXAMPLE
Some solutions for n=5 k=4
..0..1..1..0. .0..0..0..0. .1..1..0..0. .0..0..0..0. .0..0..0..0
..0..1..1..0. .0..0..1..1. .1..1..0..0. .0..0..0..0. .0..0..0..0
..1..1..1..1. .0..0..1..1. .0..0..0..0. .0..0..0..0. .1..1..0..0
..0..1..1..0. .0..0..0..0. .0..0..0..0. .1..1..0..0. .1..1..0..0
..0..1..1..0. .0..0..0..0. .0..0..0..0. .1..1..0..0. .0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 10 2017
STATUS
approved