OFFSET
1,2
COMMENTS
Table starts
...1....2.....4......8.......16........32.........64.........128...........256
...2....7....18.....50......138.......383.......1063........2951..........8193
...4...18....52....148......440......1367.......4297.......13510.........42216
...8...50...148....589.....2264......8739......34693......138559........556973
..16..138...440...2264....12369.....63507.....345713.....1914083......10597966
..32..383..1367...8739....63507....447946....3260568....24521565.....184377268
..64.1063..4297..34693...345713...3260568...33392871...350899542....3640767606
.128.2951.13510.138559..1914083..24521565..350899542..5113575513...72955755546
.256.8193.42216.556973.10597966.184377268.3640767606.72955755546.1429279770363
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) = 3*a(n-1) -a(n-2) +a(n-3) +a(n-4) -2*a(n-5) -a(n-6)
k=3: [order 25] for n>26
k=4: [order 97] for n>98
EXAMPLE
Some solutions for n=5 k=4
..0..0..1..0. .0..0..1..1. .0..1..1..0. .0..0..1..0. .0..1..1..1
..0..1..1..1. .1..1..0..0. .1..0..1..0. .1..0..1..0. .0..1..1..0
..1..1..0..0. .1..1..1..0. .1..0..1..1. .1..0..1..0. .1..1..1..1
..0..1..1..0. .1..1..0..1. .1..1..1..0. .0..1..0..1. .0..1..0..0
..0..0..1..1. .1..0..1..0. .0..1..0..1. .1..0..1..1. .0..0..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Mar 14 2018
STATUS
approved