934428domain: NAppears in sequencesTrajectory of 3 under map x->x + (x-with-digits-reversed).at n=14A033648Trajectory of 15 under map x->x + (x-with-digits-reversed).at n=11A033653Trajectory of 21 under map x->x + (x-with-digits-reversed).at n=12A033656Trajectory of 69 under map x->x + (x-with-digits-reversed).at n=9A033672