[0,1,3,7,13,27,55,109,219,437,875,1751,3501,7003, 14005,28011,56021,112043,224085,448171,896341, 1792683,3585365,7170731,14341463,28682925, 57365851,114731701,229463403,458926805,917853611, 1835707221]