OFFSET
1,2
COMMENTS
Column 3 of A299514.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 5*a(n-1) -7*a(n-2) +4*a(n-3) -12*a(n-4) +25*a(n-5) -22*a(n-6) +8*a(n-7) +9*a(n-8) -7*a(n-9) +13*a(n-10) -50*a(n-11) +64*a(n-12) -39*a(n-13) +10*a(n-15) for n>17
EXAMPLE
Some solutions for n=9
..0..1..0. .0..1..0. .0..0..1. .0..1..0. .0..1..0. .0..1..0. .0..1..1
..1..0..1. .1..0..1. .1..1..0. .0..1..0. .1..0..1. .0..1..0. .0..1..0
..0..1..0. .0..0..0. .1..0..1. .0..1..0. .0..1..0. .1..1..1. .1..0..1
..1..1..1. .0..0..0. .0..0..0. .1..1..1. .1..0..1. .1..1..1. .0..0..0
..1..1..1. .0..0..0. .0..0..0. .1..1..1. .0..0..0. .1..1..1. .0..0..0
..1..1..1. .1..0..1. .0..0..0. .1..1..1. .0..0..0. .0..1..0. .0..0..0
..1..1..1. .1..0..1. .0..0..0. .1..1..1. .0..0..0. .1..0..0. .0..0..0
..0..1..0. .1..0..1. .1..0..1. .0..1..0. .1..0..1. .0..0..0. .1..0..1
..0..1..0. .1..0..1. .1..0..1. .1..0..1. .0..1..0. .1..1..0. .1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 11 2018
STATUS
approved