OFFSET
1,3
COMMENTS
Column 3 of A320364.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 5*a(n-1) -4*a(n-2) +9*a(n-3) -19*a(n-4) +12*a(n-5) -24*a(n-6) +5*a(n-7) -9*a(n-8) +28*a(n-9) +20*a(n-10) -13*a(n-11) -31*a(n-12) -8*a(n-13) +14*a(n-14) +19*a(n-15) +4*a(n-16) -a(n-17) -2*a(n-18) for n>20
EXAMPLE
Some solutions for n=5
..0..1..0. .0..1..0. .0..1..0. .0..1..0. .0..1..1. .0..1..0. .0..1..1
..1..1..1. .1..0..1. .1..0..1. .1..0..1. .1..0..0. .1..1..0. .1..0..0
..0..0..1. .1..0..0. .1..0..1. .1..0..1. .0..0..1. .0..1..1. .0..1..0
..0..1..0. .0..1..1. .0..0..0. .0..0..1. .1..0..0. .0..1..0. .1..1..1
..1..0..1. .0..1..0. .1..0..1. .1..1..0. .1..0..1. .1..0..1. .0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 11 2018
STATUS
approved