[0,1,3,7,14,30,62,125,253,509,1020,2044,4092,8188, 16379,32763,65531,131066,262138,524282,1048569, 2097145,4194297,8388601,16777208,33554424, 67108856,134217719,268435447,536870903,1073741814, 2147483638,4294967286,8589934582]