OFFSET
1,1
COMMENTS
Column 3 of A298221.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +a(n-3) -13*a(n-4) +3*a(n-5) -a(n-6) +18*a(n-7) -4*a(n-8) +7*a(n-9) -7*a(n-10) +5*a(n-11) -6*a(n-12) -a(n-13) -4*a(n-14) for n>15
EXAMPLE
Some solutions for n=7
..0..1..0. .0..1..0. .0..1..1. .0..1..1. .0..1..0. .0..1..0. .0..1..0
..1..0..0. .0..0..0. .1..0..0. .0..1..0. .1..1..0. .0..1..1. .1..1..0
..1..0..0. .1..1..1. .0..0..1. .1..0..1. .1..1..0. .0..1..1. .1..1..0
..0..0..1. .0..0..0. .0..0..1. .0..0..1. .0..1..1. .1..1..0. .1..1..0
..0..0..1. .1..1..1. .0..0..1. .0..0..1. .0..1..1. .1..1..0. .0..1..1
..0..0..1. .0..0..0. .0..0..1. .0..0..1. .0..1..1. .1..1..0. .0..1..1
..0..1..0. .0..1..0. .0..1..0. .1..0..1. .0..1..0. .0..1..0. .0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 15 2018
STATUS
approved