OFFSET
1,2
COMMENTS
Column 3 of A317436.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +5*a(n-2) +10*a(n-3) -29*a(n-4) -69*a(n-5) -36*a(n-6) +68*a(n-7) +201*a(n-8) +115*a(n-9) +35*a(n-10) -218*a(n-11) -192*a(n-12) -83*a(n-13) +2*a(n-14) +113*a(n-15) +61*a(n-16) +18*a(n-17) +4*a(n-18) -10*a(n-19) -4*a(n-20) for n>21
EXAMPLE
Some solutions for n=5
..0..1..0. .0..0..1. .0..0..0. .0..0..0. .0..1..1. .0..1..0. .0..0..1
..1..0..1. .1..0..0. .0..1..0. .1..1..0. .0..0..1. .1..1..0. .0..1..0
..1..0..1. .1..1..1. .1..1..1. .1..0..1. .0..0..0. .0..0..0. .0..0..0
..1..0..1. .1..0..1. .1..1..0. .1..1..1. .0..1..1. .0..0..1. .0..1..1
..0..1..0. .0..1..1. .1..0..0. .1..0..1. .0..0..1. .0..1..1. .1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 27 2018
STATUS
approved