OFFSET
1,2
COMMENTS
Column 3 of A305015.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +3*a(n-2) +13*a(n-3) -9*a(n-4) -37*a(n-5) -59*a(n-6) +27*a(n-7) +130*a(n-8) +92*a(n-9) -35*a(n-10) -129*a(n-11) -8*a(n-12) +78*a(n-13) +45*a(n-14) -53*a(n-15) -34*a(n-16) -24*a(n-17) for n>18
EXAMPLE
Some solutions for n=5
..0..0..0. .0..0..1. .0..0..0. .0..0..0. .0..1..0. .0..1..0. .0..0..0
..0..1..0. .1..1..1. .1..0..1. .0..1..0. .0..1..0. .0..0..1. .0..1..1
..0..0..1. .1..1..1. .0..0..0. .0..0..1. .0..0..0. .0..0..0. .0..1..1
..0..0..0. .1..0..1. .1..0..1. .0..1..1. .0..1..0. .0..1..0. .0..0..0
..0..1..0. .1..0..1. .0..0..0. .1..0..1. .0..0..1. .0..1..0. .0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 23 2018
STATUS
approved