-7404domain: ZAppears in sequencesExpansion of q^(-1) * f(-q^3) * phi(-q^3) / (phi(-q^2) * psi(-q^9)) in powers of q where f(), phi(), psi() are Ramanujan theta functions.at n=39A186115Expansion of chi(q^3) / chi^3(q) in powers of q where chi() is a Ramanujan theta function.at n=19A294387