Found this occurence of iterated logarithm in a discussion of a problem of S.Pillai (1936), see Discussion of a function considered by Pillai
Gottfried
[update]: I changed the title to make visible in the thread list, that this is just a reference to "outside" (of the forum) material
Gottfried
[update]: I changed the title to make visible in the thread list, that this is just a reference to "outside" (of the forum) material
Gottfried Helms, Kassel

