OFFSET
1,2
COMMENTS
Table starts
..1....2....3......5.......8........13..........21...........34.............55
..2....4....4.....16......50.......112.........348.........1028...........2796
..3....4...10.....28......44.......222.........573.........1551...........5437
..5...16...28....247.....677......3597.......21500.......101350.........547390
..8...50...44....677....3127.....16277......154308......1009789........7044041
.13..112..222...3597...16277....223094.....2596017.....24865898......323299576
.21..348..573..21500..154308...2596017....56762816....870847276....16820882455
.34.1028.1551.101350.1009789..24865898...870847276..20496493815...621532095596
.55.2796.5437.547390.7044041.323299576.16820882455.621532095596.32439092859262
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) = 2*a(n-1) +2*a(n-2) +6*a(n-3) -10*a(n-4) -8*a(n-5) for n>6
k=3: [order 18] for n>19
k=4: [order 66] for n>68
EXAMPLE
Some solutions for n=5 k=4
..0..0..0..1. .0..0..0..1. .0..1..1..1. .0..1..1..0. .0..0..0..0
..1..1..0..0. .0..0..0..1. .1..1..0..0. .1..1..1..1. .0..0..1..1
..1..1..0..1. .0..0..1..1. .1..0..0..0. .1..1..1..1. .1..1..1..1
..1..0..0..0. .1..1..1..1. .1..1..0..1. .0..0..0..0. .0..0..1..0
..1..0..0..1. .0..0..1..0. .1..1..0..1. .1..1..0..0. .0..0..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 21 2018
STATUS
approved