OFFSET
1,2
COMMENTS
Row 3 of A297431.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +3*a(n-3) +8*a(n-4) +a(n-5) -a(n-6).
Empirical: G.f.: -x*(-1-2*x-11*x^2-9*x^3+x^5)/(1-x-3*x^3-8*x^4-x^5+x^6) . - R. J. Mathar, Feb 13 2018
EXAMPLE
Some solutions for n=5
..1..1..0..0..0. .0..1..1..0..0. .0..1..0..0..0. .1..1..1..0..0
..1..1..0..1..1. .1..0..0..1..0. .1..1..1..0..0. .0..1..0..0..0
..0..0..0..1..1. .0..1..1..0..0. .0..0..0..0..0. .0..0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 30 2017
STATUS
approved