720, 1440, 2160, 2280, 3600, 4320, 5040, 5760, 6480, 7200 7920, 8640, 9360, 10080, 10800, 11520, 12240, 12960, 13680, 14400 15120, 15840, 16560, 17280, 18000, 18720, 19440, 20160, 20880, 21600