Could someone explain in the following examples, how the declension of "ein-" works?
- "die eines nach dem anderen einschlafenden Kinder"
- "die einer nach dem anderen durchstartenden Halbstarken"
- "die eine nach der anderen loskichernden Frauen"
If "ein-" is an indefinite article, "eines" would be the masculin genitive, "einer" would be the feminine genitive and "eine" could be the feminine nominative/accusative, which doesn't seem to be right.
What is "ein-" in that case?