OFFSET
9,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 9..10000
FORMULA
G.f.: (x^5-x-1)*x^9/((x^2+x+1)*(x^4+x^3+x^2+x+1)*(x^2+1)*(x+1)^2*(x-1)^5).
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Alois P. Heinz, Oct 16 2018
STATUS
approved