OFFSET
1,2
COMMENTS
Table starts
...1....2.....4.....8....16....32.....64....128....256....512....1024....2048
...2....7....18....50...138...383...1063...2951...8193..22748...63161..175370
...4...18....45...116...293...735...1844...4626..11611..29151...73200..183828
...8...50...116...302...726..1709...3996...9346..21891..51367..120680..283746
..16..138...293...726..1649..3649...8035..17751..39436..88008..197077..442264
..32..383...735..1709..3649..7600..15802..33150..70311.150532..324443..702447
..64.1063..1844..3996..8035.15802..31172..62375.126931.262036..546825.1149471
.128.2951..4626..9346.17751.33150..62375.119694.234839.469777..953721.1956225
.256.8193.11611.21891.39436.70311.126931.234839.446581.869959.1726691.3472128
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..612
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1)
k=2: a(n) = 3*a(n-1) -a(n-2) +a(n-3) +a(n-4) -2*a(n-5) -a(n-6)
k=3: a(n) = 4*a(n-1) -3*a(n-2) -3*a(n-3) +2*a(n-4) +3*a(n-5) -2*a(n-6) for n>8
k=4: a(n) = 4*a(n-1) -4*a(n-2) +2*a(n-5) -3*a(n-7) +2*a(n-8) +a(n-9) -a(n-10) for n>13
k=5: [order 14] for n>16
k=6: [order 15] for n>19
k=7: [order 23] for n>28
EXAMPLE
Some solutions for n=5 k=4
..0..0..1..1. .0..0..1..0. .0..1..0..1. .0..1..1..0. .0..0..1..0
..0..1..0..0. .0..1..0..1. .0..1..0..1. .0..0..1..1. .1..0..1..1
..1..0..1..0. .1..0..1..0. .0..1..0..0. .1..0..0..1. .1..0..0..1
..0..1..0..1. .1..0..1..1. .0..1..1..0. .1..1..0..1. .1..1..0..1
..1..0..1..0. .1..0..0..0. .0..0..1..0. .0..1..1..0. .0..0..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Mar 18 2018
STATUS
approved