OFFSET
1,1
COMMENTS
Column 1 of A205072.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 5*a(n-2) + 2*a(n-3) + 4*a(n-5) - 3*a(n-6) + 4*a(n-8) - 2*a(n-9) for n > 10.
Empirical g.f.: 2*x*(8 + 20*x + 9*x^2 + 3*x^3 + 7*x^4 - 9*x^5 + 4*x^6 + 11*x^7 - 4*x^8 + x^9) / (1 - 5*x^2 - 2*x^3 - 4*x^5 + 3*x^6 - 4*x^8 + 2*x^9). - Colin Barker, Jun 10 2018
EXAMPLE
Some solutions for n=4:
1 0 0 1 0 1 1 1 1 1 0 0 1 0 0 0 1 1 0 0
0 1 0 0 1 1 1 1 0 1 1 0 0 0 0 1 1 1 0 1
0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 0 0 1 0 0
0 1 1 1 0 1 0 1 0 0 0 0 0 0 0 1 1 1 0 0
0 0 0 1 0 0 0 0 1 1 1 1 0 1 0 0 1 1 0 1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 21 2012
STATUS
approved