OFFSET
1,5
COMMENTS
Table starts
..0.....1......1.......2.........3..........5............8............13
..1.....4.....18......52.......174........604.........2048..........6948
..1....18.....56.....223.......849.......3387........13075.........51006
..2....52....223.....996......5180......26926.......135226........690918
..3...174....849....5180.....49850.....384118......2837337......23616114
..5...604...3387...26926....384118....3935913.....38706835.....445387553
..8..2048..13075..135226...2837337...38706835....509195874....8032883165
.13..6948..51006..690918..23616114..445387553...8032883165..190487814086
.21.23652.199243.3547086.189866553.4869394793.118750882425.4054091346048
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) = 4*a(n-1) -2*a(n-2) +2*a(n-3) -6*a(n-4) -4*a(n-5) for n>6
k=3: [order 20] for n>21
k=4: [order 69] for n>71
EXAMPLE
Some solutions for n=5 k=4
..0..1..0..1. .0..0..0..1. .0..0..1..0. .0..1..0..1. .0..0..1..1
..1..0..1..0. .1..1..1..0. .0..1..1..0. .1..0..0..1. .1..0..1..1
..1..0..1..0. .1..0..0..1. .1..0..0..0. .1..0..0..0. .0..1..1..1
..1..1..0..1. .0..1..0..1. .0..1..1..1. .1..0..0..1. .1..0..1..1
..1..0..1..1. .0..0..1..1. .1..0..0..0. .0..1..0..1. .0..0..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 18 2018
STATUS
approved