275期：16码[[05,07,12,13,15,16,17,19,20,21,24,25,31,34,35,45]]开：17√
276期：16码[[06,07,09,11,18,19,21,24,25,28,29,30,37,41,42,46]]开：14x
277期：16码[[03,06,09,11,12,15,16,17,18,19,23,27,29,37,46,48]]开：11√
278期：16码[[01,04,09,14,18,20,21,22,23,25,26,29,34,35,39,40]]开：02x
279期：16码[[01,02,08,10,13,16,22,24,27,28,37,39,42,45,46,47]]开：//