1, 9, 4, 10 are numbers from Words by the Watcher. "If understood they could save."
Seems like this would be a good time to be saved, as the war may be approaching.
We probably don't know enough yet to interpret them, though. Can't think of a way to relate them to 6, 13, 18, 25 from the pods. Maybe there's a math whiz out there who can?
Hmm. Maybe the pod numbers should be listed in the order in which the pods appeared?