Not considering the electron spin, the degeneracy of first excited state (n = 2) of H-atom is:

Single electron species don't follow the H rule and all orbitals of a particular shell have same energy and are called degenerate orbitals. First excited state of H−=1s1,2s1For H-atom, energy of 2s-orbital = energy of 2p-orbitals so degeneracy is 1 +3 = 4