[7,16,34,70,142,286,574,1150,2302,4606,9214,18430, 36862,73726,147454,294910,589822,1179646,2359294, 4718590,9437182,18874366,37748734,75497470, 150994942,301989886,603979774,1207959550, 2415919102]