OFFSET
1,1
COMMENTS
Column 3 of A316209.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) +2*a(n-2) -9*a(n-3) -10*a(n-4) +7*a(n-5) +8*a(n-6) -9*a(n-7) -3*a(n-8) +23*a(n-9) +18*a(n-10) -8*a(n-11) -4*a(n-12) +2*a(n-13) -2*a(n-14) -14*a(n-15) -8*a(n-16)
EXAMPLE
Some solutions for n=5
..0..0..0. .0..0..1. .0..1..0. .0..0..1. .0..1..1. .0..1..0. .0..1..1
..0..0..0. .0..1..0. .1..1..1. .1..0..0. .0..0..1. .1..1..1. .0..0..1
..1..1..0. .1..1..0. .0..1..1. .0..0..0. .1..1..0. .0..1..1. .0..0..0
..1..0..1. .1..0..0. .1..1..1. .0..0..0. .1..0..0. .1..1..0. .0..0..1
..0..1..0. .1..0..1. .1..0..1. .0..0..0. .0..0..0. .1..1..1. .0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 26 2018
STATUS
approved