OFFSET
1,1
COMMENTS
Column 3 of A304472.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +8*a(n-3) -21*a(n-4) -26*a(n-5) +10*a(n-6) +31*a(n-7) +20*a(n-8) -20*a(n-9) -10*a(n-10) for n>12
EXAMPLE
Some solutions for n=5
..0..1..0. .0..0..1. .0..0..0. .0..0..1. .0..1..0. .0..1..1. .0..1..1
..1..1..1. .0..0..0. .0..0..0. .0..1..1. .0..1..1. .0..1..1. .0..1..0
..1..1..0. .1..1..0. .0..0..0. .1..1..1. .0..0..0. .0..1..1. .0..0..0
..1..0..0. .1..0..0. .0..0..0. .1..1..1. .0..0..0. .1..0..1. .1..0..0
..1..1..1. .0..0..0. .0..0..0. .0..1..1. .1..0..1. .0..1..1. .1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 13 2018
STATUS
approved