OFFSET
1,2
COMMENTS
Table starts
..1....2....3......5........8.........13...........21.............34
..2....5....9.....21.......57........125..........289............741
..3....9...14.....33.......90........204..........527...........1547
..5...21...33....141......610.......2516........14294..........88030
..8...57...90....610.....6188......35318.......333207........4194626
.13..125..204...2516....35318.....393048......7760044......159647483
.21..289..527..14294...333207....7760044....302924053....11244564485
.34..741.1547..88030..4194626..159647483..11244564485...789775871803
.55.1737.4509.509381.41147020.2883656719.374107033198.46866337730606
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) -a(n-2) +8*a(n-3) -8*a(n-4)
k=3: [order 17] for n>19
k=4: [order 52] for n>55
EXAMPLE
Some solutions for n=5 k=4
..0..0..1..1. .0..1..0..0. .0..1..0..1. .0..1..1..0. .0..1..0..0
..0..1..1..1. .1..1..0..1. .1..1..0..0. .1..1..1..1. .0..0..0..0
..0..0..1..0. .0..0..1..0. .0..0..1..1. .1..1..1..1. .0..0..0..0
..1..1..0..1. .1..1..1..1. .1..1..0..0. .1..1..1..1. .0..0..0..0
..0..1..0..0. .1..0..1..1. .1..0..1..0. .1..0..1..1. .0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jul 19 2018
STATUS
approved