OFFSET
1,2
COMMENTS
Table starts
...1....2.....4......8.......16........32..........64..........128
...2....8....21.....49......120.......293.........719.........1774
...4...21....46....150......488......1468........4626........14720
...8...49...150....490.....2306......7988.......29512.......118116
..16..120...488...2306....17039....101712......575421......3632635
..32..293..1468...7988...101712....929233.....7953354.....80002584
..64..719..4626..29512...575421...7953354....98315821...1489532375
.128.1774.14720.118116..3632635..80002584..1489532375..35202633059
.256.4389.45811.442877.22324637.773208574.21712800613.807772568098
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..220
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1)
k=2: a(n) = 3*a(n-1) +a(n-2) -4*a(n-3) -4*a(n-4) for n>5
k=3: [order 10] for n>12
k=4: [order 21] for n>25
k=5: [order 84] for n>88
EXAMPLE
Some solutions for n=5 k=4
..0..1..1..0. .0..0..0..1. .0..1..0..0. .0..0..1..1. .0..1..1..0
..1..1..1..1. .0..0..0..0. .1..1..0..0. .0..0..0..1. .1..1..1..1
..1..0..0..1. .0..0..0..0. .0..0..0..0. .0..0..0..0. .0..1..1..1
..1..1..1..1. .0..0..1..0. .0..0..1..1. .1..1..0..0. .0..0..1..1
..0..1..1..1. .1..0..0..0. .0..0..1..0. .1..0..0..0. .0..0..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jul 24 2018
STATUS
approved