OFFSET
1,1
COMMENTS
Column 4 of A305516.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +a(n-2) +5*a(n-3) -8*a(n-6) -8*a(n-7) -10*a(n-9) -a(n-10) +a(n-11) -2*a(n-12) -2*a(n-14) for n>17
EXAMPLE
Some solutions for n=5
..0..0..0..0. .0..0..0..0. .0..0..1..0. .0..0..1..0. .0..0..1..0
..1..0..1..0. .1..0..0..1. .1..0..0..0. .1..0..0..0. .1..0..0..0
..0..0..0..0. .0..0..0..0. .0..0..0..0. .0..0..0..1. .0..0..0..0
..0..0..0..1. .1..0..0..1. .0..0..0..1. .1..0..0..0. .1..0..0..1
..0..1..0..0. .0..0..0..0. .0..1..0..0. .0..0..1..0. .0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 03 2018
STATUS
approved