OFFSET
1,2
COMMENTS
Table starts
...1....2.....4.....8......16.......32........64........128.........256
...2....4....12....24......64......184.......432.......1088........2944
...4...12....27....58.....189......526......1344.......3772.......10515
...8...24....58...164.....608.....2168......6955......23269.......80463
..16...64...189...608....3572....16833.....67791.....313348.....1479005
..32..184...526..2168...16833....99928....513811....3086539....18841620
..64..432..1344..6955...67791...513811...3363541...25699369...199805626
.128.1088..3772.23269..313348..3086539..25699369..257823074..2641827240
.256.2944.10515.80463.1479005.18841620.199805626.2641827240.35799252324
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..219
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1)
k=2: a(n) = 2*a(n-1) +8*a(n-3) -8*a(n-4) -8*a(n-5) for n>6
k=3: [order 13] for n>14
k=4: [order 65] for n>67
EXAMPLE
Some solutions for n=5 k=4
..0..0..0..0. .0..0..1..1. .0..1..1..0. .0..0..1..0. .0..0..0..0
..0..0..0..0. .0..0..0..0. .0..0..0..0. .0..0..1..0. .0..0..0..0
..1..0..0..0. .0..0..0..0. .0..0..0..0. .0..1..1..1. .0..0..1..1
..1..0..0..0. .1..0..0..1. .1..1..0..0. .0..0..0..1. .0..0..0..0
..0..0..0..0. .1..0..0..1. .0..0..0..0. .0..1..1..1. .0..0..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jun 18 2018
STATUS
approved