title: [Recursion formula of energy levels for 2p(3)3s and 2p(3)3d of O I isoelectronic series].
abstract: Based on the perturbation expansion and the observed energy levels for 2p(3)3s and 2p(3)3d of O I -like ions, a recursion formula for the energy levels has been derived. It is found that this method is considerably simple and accurate.
authors.affiliation: Institute of Atomic and Molecular Sciences, Sichuan Union University, 610065 Chengdu.
authors.forename: J
authors.initials: J
authors.lastname: Luo
authors.forename: J
authors.initials: J
authors.lastname: Diao
authors.forename: Z
authors.initials: Z
authors.lastname: Xu