OFFSET
1,2
COMMENTS
Column 3 of A303888.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +3*a(n-2) -10*a(n-3) +4*a(n-5) -16*a(n-6) +5*a(n-7) +17*a(n-8) -5*a(n-9) +3*a(n-10) +7*a(n-11) +7*a(n-12) +9*a(n-13) +3*a(n-14) +5*a(n-15) +2*a(n-16) for n>18
EXAMPLE
Some solutions for n=5
..0..1..0. .0..1..0. .0..0..1. .0..1..0. .0..0..1. .0..0..1. .0..1..1
..1..0..1. .1..1..0. .1..1..0. .0..1..0. .0..0..1. .1..1..0. .0..1..1
..1..0..0. .1..0..1. .1..1..1. .1..1..1. .1..1..0. .1..1..0. .0..1..1
..0..0..1. .0..0..0. .1..1..0. .0..1..0. .0..1..1. .0..0..1. .0..1..1
..1..1..0. .1..0..1. .1..1..0. .1..0..1. .0..1..0. .0..0..1. .1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 02 2018
STATUS
approved