OFFSET
1,2
COMMENTS
Column 7 of A298187.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) -2*a(n-2) -a(n-3) +2*a(n-4) -2*a(n-5) +a(n-6) -a(n-7) +a(n-8) -a(n-10) +a(n-11) for n>12
EXAMPLE
Some solutions for n=7
..0..0..0..0..0..1..1. .0..0..0..0..1..1..1. .0..0..0..1..1..0..0
..0..0..0..0..0..1..1. .0..0..0..0..1..1..1. .0..0..0..1..1..0..0
..0..0..0..0..0..1..1. .0..0..0..1..0..1..1. .0..0..0..1..1..0..0
..0..0..0..0..0..1..1. .1..1..1..0..1..0..0. .0..0..0..1..1..0..0
..0..0..0..0..0..1..1. .1..1..1..1..0..0..0. .0..0..0..1..1..0..0
..0..0..0..0..0..1..1. .1..1..1..1..0..0..0. .0..0..0..1..1..0..0
..0..0..0..0..0..1..1. .1..1..1..1..0..0..0. .0..0..0..1..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 14 2018
STATUS
approved