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
It is probably true that h n = 3 for infinitely many n.
{n | Erdos770.h n = 3}.InfiniteOpenStatement only, no proof