OFFSET
1,3
COMMENTS
Table starts
...1.1...1..1...1....1.....1.....1.......1........1.........1..........1
...2.2...8..8..32...32...128...128.....512......512......2048.......2048
...4.1...4..1...4....1.....4.....1.......4........1.........4..........1
...8.2...8..2..12...10....46....50.....204......290......1034.......1682
..16.1..16..4..64...25...368...201....2545.....1855.....21082......17922
..32.2..32..3..62...56...758...822...11950....15100....206189.....274746
..64.1..64..3.204..136..2956..3929...69328...130531...2005898....4227664
.128.2.128.10.744..531.15494.24759..629227..1489177..33766564...89782726
.256.1.256..9.900.1035.44101.97205.3531980.11297739.359263250.1265799068
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..242
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1)
k=2: a(n) = a(n-2)
k=3: a(n) = 2*a(n-1) for n>3
k=4: [order 55] for n>57
k=5: [order 33] for n>35
Empirical for row n:
n=1: a(n) = a(n-1)
n=2: a(n) = 4*a(n-2)
n=3: a(n) = a(n-2)
n=4: [order 18] for n>19
n=5: [order 34] for n>35
EXAMPLE
All solutions for n=5 k=4
..0..0..1..1. .0..0..0..1. .0..1..1..1. .0..1..0..1
..0..0..1..1. .0..0..0..1. .0..1..1..1. .0..1..0..1
..0..1..0..1. .0..1..0..1. .0..1..0..1. .0..1..0..1
..0..0..1..1. .0..0..0..1. .0..1..1..1. .0..1..0..1
..0..0..1..1. .0..0..0..1. .0..1..1..1. .0..1..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Apr 21 2018
STATUS
approved