OFFSET
1,1
COMMENTS
Column 3 of A305769.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +9*a(n-2) -6*a(n-4) +12*a(n-5) -3*a(n-6) -27*a(n-7) +17*a(n-8) -4*a(n-9) -7*a(n-10) +a(n-11)
EXAMPLE
Some solutions for n=5
..0..1..1. .0..1..1. .0..0..1. .0..0..1. .0..1..0. .0..0..1. .0..1..1
..1..1..1. .1..0..0. .0..1..1. .0..0..0. .1..1..1. .1..1..0. .0..0..1
..1..1..1. .0..0..1. .1..1..1. .1..0..1. .1..0..0. .1..0..1. .0..1..0
..1..1..1. .1..1..0. .0..1..1. .1..1..0. .0..0..0. .1..1..1. .0..0..0
..0..0..1. .1..1..1. .0..0..0. .0..0..1. .1..1..1. .1..1..0. .1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 10 2018
STATUS
approved