2 to the 1 power = 22 to the 2 power = 42 to the 3 power = 82 to the 4 power = 162 to the 5 power = 322 to the 6 power = 642 to the 7 power = 1282 to the 8 power = 2562 to the 9 power = 5122 to the 10 power = 1024