OFFSET
1,1
COMMENTS
Column 1 of A228740
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) -a(n-3) +a(n-5).
Empirical: G.f. -2*x*(1+x)*(x^2-x+1) / ( -1+2*x-x^3+x^5 ). - R. J. Mathar, Sep 02 2013
EXAMPLE
All solutions for n=4
..1..1..0..0..1..1..1..0..0..1..0..0..1..1..0..0
..0..1..0..0..0..1..0..1..1..1..0..1..1..0..1..0
..1..1..1..1..0..1..0..1..0..0..0..0..0..1..1..0
..1..1..1..0..1..0..0..0..0..0..1..1..1..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 01 2013
STATUS
approved