OFFSET
1,2
COMMENTS
Column 3 of A298063.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +2*a(n-2) +12*a(n-3) -8*a(n-4) -20*a(n-5) -50*a(n-6) +12*a(n-7) +61*a(n-8) +87*a(n-9) +13*a(n-10) -74*a(n-11) -50*a(n-12) -8*a(n-13) +45*a(n-14) +8*a(n-15) +2*a(n-16) -12*a(n-17) for n>18
EXAMPLE
Some solutions for n=9
..0..0..1. .0..0..1. .0..1..0. .0..0..1. .0..0..1. .0..1..1. .0..0..1
..0..0..1. .0..0..1. .0..1..0. .0..0..1. .0..0..1. .0..1..1. .0..0..1
..1..1..1. .0..1..1. .1..1..1. .0..1..1. .1..1..1. .0..0..0. .0..1..1
..1..1..1. .0..0..1. .0..1..0. .0..0..1. .1..1..1. .0..0..0. .0..0..1
..0..0..1. .0..1..1. .0..1..0. .0..1..1. .0..0..1. .0..1..1. .1..0..1
..1..1..1. .1..0..1. .1..1..1. .0..0..1. .0..0..1. .0..1..1. .0..1..1
..1..1..1. .0..0..1. .1..1..1. .0..0..1. .0..1..1. .0..0..0. .1..1..1
..1..0..0. .0..1..1. .0..0..1. .0..1..1. .0..0..1. .0..1..1. .1..0..1
..1..0..0. .0..1..1. .0..0..1. .0..1..1. .0..0..1. .0..1..1. .1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 11 2018
STATUS
approved