1 2 3 4 5 6 to 15 July 8, 2019 16 32 64 128 1 2 3 4 5 6 to 150 1 2 3 4 5 6 до 150 1 2 3 4 5 6 до 15 1 2 3 4 5 6 até 150 1 2 3 4 5 6 tentukan suku ke 15