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....143.....412....1225.....3699.....11243......34012
...8...50...143....505....1534....4781....15292.....48838.....158036
..16..138...412...1534....6220...21787....77434....287515....1062023
..32..383..1225...4781...21787...97745...399796...1701284....7433503
..64.1063..3699..15292...77434..399796..2038646...9872494...49173493
.128.2951.11243..48838..287515.1701284..9872494..57179007..324488769
.256.8193.34012.158036.1062023.7433503.49173493.324488769.2175995920
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) +a(n-3) +a(n-4) -2*a(n-5) -a(n-6)
k=3: [order 24] for n>25
k=4: [order 95] for n>96
EXAMPLE
Some solutions for n=5 k=4
..0..1..1..0. .0..0..1..0. .0..0..1..0. .0..1..1..0. .0..1..0..0
..1..0..1..0. .1..1..1..1. .1..0..1..1. .1..0..1..1. .1..0..1..1
..0..0..1..1. .0..1..0..1. .1..0..0..1. .1..0..0..0. .0..1..0..0
..1..1..1..0. .0..0..1..0. .1..1..0..1. .0..0..0..1. .1..0..1..0
..1..0..1..0. .1..1..0..0. .0..1..0..0. .1..1..0..1. .0..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Mar 16 2018
STATUS
approved