Erdős problem 770
For odd n, the values of h n form an unbounded set. This is described as 'easy to see' in [Er74b].
Sources
FormalConjectures/ErdosProblems/
770.lean
Retained formal statement
Does liminf h n = ∞?
sorry ↔ Filter.liminf Erdos770.h Filter.atTop = ⊤OpenStatement only, no proof