2 3 m 3 4 n 256 729 July 8, 2019 16 32 64 128 (2m + 3n 43) ∨ (m a) ∨ (n ≤ a) 3 2^m 3 2^n (2m + 3n 40) ∨ ((m a) ∧ (n ≤ a))