Man pages matching name ephemeron.k2.makeseeded in section 3o:

Ephemeron.K2.MakeSeeded.3o.en	debian 10 / ocaml-nox
Ephemeron.K2.MakeSeeded.3o.en	debian 11 / ocaml-man
Ephemeron.K2.MakeSeeded.3o.en	debian 12 / ocaml-man