OFFSET
1,1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 8*a(n-1) - 13*a(n-2) + 17*a(n-3) - 14*a(n-4) + 3*a(n-5).
Empirical g.f.: x*(49 - 84*x + 118*x^2 - 108*x^3 + 24*x^4) / ((1 - x)*(1 - 7*x + 6*x^2 - 11*x^3 + 3*x^4)). - Colin Barker, Nov 24 2018
EXAMPLE
Some solutions for n=4:
1 1 0 0 1 0 1 0 1 1 1 0 1 0 1 1 1 1 1 1 1
1 0 1 1 0 0 1 1 1 1 1 1 1 0 1 0 0 1 0 0 0
0 1 1 0 1 1 1 0 1 1 1 1 0 1 1 0 1 0 1 1 1
0 1 0 1 1 0 0 1 0 1 1 0 0 1 1 0 1 0 1 1 1
1 0 1 1 0 0 1 0 1 1 1 0 0 1 0 1 1 0 0 0 0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2014
STATUS
approved