OFFSET
1,2
COMMENTS
Column 5 of A301906.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) +5*a(n-2) -20*a(n-3) -4*a(n-4) +16*a(n-5) for n>6
EXAMPLE
Some solutions for n=5
..0..1..1..1..1. .0..1..1..0..0. .0..1..0..1..0. .0..1..1..0..0
..1..1..0..1..1. .1..1..0..0..0. .0..1..0..1..0. .1..1..0..0..1
..1..1..0..1..1. .0..1..1..0..1. .0..1..0..1..0. .0..1..0..0..0
..1..1..0..1..1. .1..1..0..0..0. .0..1..0..1..0. .0..1..1..0..0
..1..1..1..1..0. .0..1..0..0..1. .0..1..0..1..0. .1..1..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 28 2018
STATUS
approved