1573209domain: NAppears in sequencesExpansion of (psi(x^2) / psi(-x))^3 in powers of x where psi() is a Ramanujan theta function.at n=26A001937Expansion of (psi(x^2) / psi(x))^3 in powers of x where psi() is a Ramanujan theta function.at n=26A187053