-5850domain: ZAppears in sequencesExpansion of eta(q)^9 / eta(q^3)^3 in powers of q.at n=28A109041a(n) = Fibonacci(n)*A109041(n) for n>=1, with a(0)=1, where A109041 lists the coefficients in eta(q)^9/eta(q^3)^3.at n=7A205973Write x/(1-x) in the form Sum_{j>=1} a(j)*x^j/(1+a(j)*x^j).at n=19A290971