2 3n 2 ) n 6 1 July 8, 2019 16 32 64 128 3n 2 2 1 3 n 6 2 3n 2 ≤ n 6 1 3n 2 4 n 6 1 2 2 3n 10 )- 3 n 2 6n 6 2n = 6
