[1,2,5,13,33,81,193,449,1025,2305,5121,11265, 24577,53249,114689,245761,524289,1114113,2359297, 4980737,10485761,22020097,46137345,96468993, 201326593,419430401,872415233,1811939329, 3758096385,7784628225]