OFFSET
1,5
COMMENTS
Table starts
.1.....1......1........1..........1.............1...............1
.1.....5.....13.......42........127...........389............1192
.1....13.....23......125........420..........1943............9012
.1....42....125.....1157.......8134.........66668..........564283
.1...127....420.....8134.....107653.......1640199........25838859
.1...389...1943....66668....1640199......45416563......1301827631
.1..1192...9012...564283...25838859....1301827631.....67756659422
.1..3645..42321..4792366..404080073...37042505019...3508332244817
.1.11161.205597.41273307.6401182687.1066728270636.183583736926115
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = a(n-1) +5*a(n-2) +4*a(n-3)
k=3: [order 12] for n>14
k=4: [order 46] for n>48
EXAMPLE
Some solutions for n=5 k=4
..0..0..0..1. .0..0..0..0. .0..1..0..0. .0..0..0..0. .0..0..0..0
..0..0..0..0. .0..0..0..0. .0..0..0..0. .0..0..0..0. .0..0..0..0
..1..1..1..1. .0..0..0..0. .1..1..1..1. .0..0..0..0. .0..0..0..0
..1..1..1..1. .1..1..1..1. .1..1..1..1. .1..1..1..1. .0..0..0..0
..1..1..1..1. .0..1..1..0. .1..1..1..1. .1..1..1..1. .0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 08 2018
STATUS
approved