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....115....168.....539......1977.......5942.......16733........49219
.0...61....497....902....3683.....23909.....128242......465323......1918153
.0..162...2086...3256...17546....182773....1275348.....5557469.....29725028
.0..421...9091..15852...92603...1551340...16130212....82774516....506265517
.0.1103..40575..77904..615351..18089458..303355178..1916999716..16636194027
.0.2890.172996.314276.3268978.155010391.3654880956.27228654766.305442540368
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 68] for n>69
EXAMPLE
Some solutions for n=5 k=4
..0..0..1..0. .0..1..0..0. .0..0..1..1. .0..1..1..1. .0..0..1..1
..1..1..0..0. .1..0..1..1. .1..1..0..0. .1..0..0..0. .1..0..0..1
..1..0..1..0. .0..1..0..1. .1..0..1..0. .1..1..1..1. .1..1..1..1
..0..0..1..1. .1..1..1..0. .1..0..0..1. .1..1..1..1. .0..0..1..1
..1..1..0..0. .0..0..0..1. .0..1..1..0. .1..0..0..1. .1..1..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Apr 09 2018
STATUS
approved