OFFSET
1,2
COMMENTS
Table starts
..1....2..3....5.....8....13.....21......34.......55........89........144
..2....4..3...13....34....73....203.....594.....1443......4013......11114
..3....3..1....4.....5.....6.....20......35.......70.......174........365
..5...13..4...38....54....97....467....1105.....3354.....12283......37107
..8...34..5...54...281...403...2353...12942....43319....219059....1139692
.13...73..6...97...403...277...1602....6037....19001.....93205.....385257
.21..203.20..467..2353..1602..24272..118439...372820...3857775...22638601
.34..594.35.1105.12942..6037.118439.1377101..4336887..60191437..664833900
.55.1443.70.3354.43319.19001.372820.4336887.10659243.151971896.1550220630
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) +a(n-2)
k=2: a(n) = a(n-1) +3*a(n-2) +8*a(n-3) -4*a(n-4) -16*a(n-5) for n>6
k=3: [order 15] for n>16
k=4: [order 51] for n>54
EXAMPLE
Some solutions for n=6 k=4
..0..1..0..1. .0..0..0..0. .0..1..1..1. .0..0..1..1. .0..0..0..1
..1..0..0..0. .0..0..1..1. .1..1..0..0. .0..0..1..1. .1..1..0..0
..1..1..0..1. .1..1..1..1. .0..1..0..0. .1..0..1..0. .1..1..1..0
..1..1..0..1. .0..0..0..0. .0..1..0..1. .1..0..1..1. .0..0..0..1
..0..0..0..0. .0..0..1..1. .1..1..0..0. .0..0..1..0. .0..0..1..1
..1..1..0..1. .1..1..1..1. .1..1..0..0. .1..0..0..1. .1..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 20 2018
STATUS
approved