Find the law of mathematics 1 3 5 7 15 () ()

Find the law of mathematics 1 3 5 7 15 () ()

1,3,5,7,15,31, (), (browsing times: 285 times, reward points: 25 | solution time: 2011-3-31 18:32 | chenyantao 1998 | prosecution Question supplement: I come to the conclusion that 1 + 3 + 5-2 = 7, 1 + 3 + 5 + 7-1 = 15, 1 + 3 + 5 + 7 + 15-0 = 31, and so on: 1 + 3 + 5 + 7 + 15 + 31 + 1 = 63 (+ 1 Theory