OFFSET
1,5
COMMENTS
Table starts
.0....1......1......2.......3.........5..........8..........13............21
.0....3......7.....10......27........45.........98.........193...........379
.0...10.....28.....42.....100.......290........730........1700..........4246
.0...23....119....168.....547......2079.......6322.......17903.........53665
.0...61....541....902....4013.....29411.....160247......660748.......3071197
.0..162...2327...3256...21361....236326....1716995.....8688851......56229035
.0..421..10384..15852..115770...2158662...24386918...158640643....1293822589
.0.1103..47491..77904..803911..27002794..497878411..4298730424...50946692110
.0.2890.208616.314276.4667376.250400003.6748940959.74532460229.1222253462556
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)
k=2: a(n) = 2*a(n-1) +a(n-2) +2*a(n-3) -a(n-4)
k=3: [order 18]
k=4: [order 72]
Empirical for row n:
n=1: a(n) = a(n-1) +a(n-2)
n=2: a(n) = a(n-1) +3*a(n-2) -4*a(n-4) for n>5
n=3: [order 15] for n>17
n=4: [order 71] for n>72
EXAMPLE
Some solutions for n=5 k=4
..0..1..0..0. .0..1..1..0. .0..1..0..1. .0..0..0..0. .0..0..0..0
..1..0..1..1. .1..0..0..1. .1..0..1..0. .1..1..1..1. .1..0..1..0
..0..0..0..0. .1..1..1..1. .0..1..0..1. .1..0..1..0. .0..1..0..1
..0..1..0..0. .0..1..1..0. .0..0..0..0. .1..1..0..1. .1..1..1..1
..1..0..1..1. .1..0..0..1. .1..1..1..1. .1..0..1..0. .0..0..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Apr 23 2018
STATUS
approved