5n 9n July 8, 2019 16 32 64 128 5n 9n 2 9n 5n 4 4n 4 4 5n 9n 5n 4 9n 6 5n 14 9n 17n 7 5n 2 9n 2 0 5n 12 9n 16 5n 2 9n 4