OFFSET
1,2
COMMENTS
Column 3 of A305685.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 7*a(n-1) -3*a(n-2) -6*a(n-3) -61*a(n-4) -4*a(n-5) +53*a(n-6) +92*a(n-7) +78*a(n-8) -9*a(n-9) -8*a(n-10) -2*a(n-11) +8*a(n-12) +10*a(n-13) +2*a(n-14) for n>16
EXAMPLE
Some solutions for n=5
..0..0..1. .0..1..0. .0..0..1. .0..0..1. .0..1..0. .0..0..1. .0..1..1
..1..1..0. .0..1..0. .1..1..0. .1..1..0. .1..0..1. .0..0..1. .0..1..1
..1..1..1. .0..1..1. .0..0..0. .1..0..1. .1..1..1. .1..1..0. .1..0..0
..0..0..1. .0..1..0. .0..0..1. .0..0..1. .0..0..0. .0..0..1. .1..1..1
..1..0..1. .0..1..0. .0..0..1. .1..1..0. .1..0..1. .0..0..1. .0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 08 2018
STATUS
approved