OFFSET
1,13
COMMENTS
Table starts
.1..1..1..1...1....1.....1.....1......1.......1.......1........1.........1
.1..1..0..1...2....1.....8.....5.....22......29......60......121.......194
.1..0..3..1...5....8.....7....25.....25......58......95......155.......299
.1..1..1..2...2....9....13....26.....74.....134.....325......731......1568
.1..2..5..2..20...38....84...319....770....2106....6301....17282.....47774
.1..1..8..9..38..169...238..1019...3112....7518...25887....74736....218787
.1..8..7.13..84..238...978..3895..11843...49752..184380...640323...2550161
.1..5.25.26.319.1019..3895.22938..81474..386923.1791871..7595552..35648606
.1.22.25.74.770.3112.11843.81474.329249.1693779.9364144.43238329.235861179
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..241
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = 3*a(n-2) +2*a(n-3) -2*a(n-4) for n>5
k=3: [order 12]
k=4: [order 35]
EXAMPLE
Some solutions for n=8 k=4
..0..1..1..0. .0..1..1..0. .0..1..1..0. .0..1..1..0. .0..1..1..0
..1..1..1..1. .1..1..1..1. .1..1..1..1. .1..1..1..1. .1..1..1..1
..0..1..1..1. .0..1..1..0. .0..1..1..0. .0..1..1..0. .0..1..1..1
..1..1..1..0. .1..1..1..1. .1..1..1..1. .1..1..1..1. .1..1..0..1
..1..1..1..1. .1..1..1..1. .1..0..1..1. .1..1..0..1. .1..1..1..1
..0..1..1..0. .0..1..1..0. .1..1..1..0. .0..1..1..1. .0..1..1..0
..1..1..1..1. .1..1..1..1. .1..1..1..1. .1..1..1..1. .1..1..1..1
..0..1..1..0. .0..1..1..0. .0..1..1..0. .0..1..1..0. .0..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 24 2018
STATUS
approved