124188domain: NAppears in sequencesG.f. A(x) satisfies both A(-x)*A(x) = A(x^2) and xA(x)^2 = B(xA(x^2)) where B(x) = x*(1+x)/(1-x).at n=27A091188Expansion of (eta(q^3) / eta(q))^12 in powers of q.at n=7A121590