-11538domain: ZAppears in sequencesExpansion of c(q^4) / c(q) in powers of q where c() is a cubic AGM theta function.at n=50A123649G.f. A(x) satisfies: A(x) = x*exp(-A(-x) + A(-x^2)/2 - A(-x^3)/3 + A(-x^4)/4 - A(-x^5)/5 + ...).at n=19A306768