245期：《《02,03,09,13,17,18,25,26,29,37,40,42,44,45,46,48》》开：17√
246期：《《02,05,08,09,12,17,19,27,30,31,35,36,39,43,46,47》》开：15x
247期：《《01,03,06,11,12,17,22,23,30,31,32,34,37,40,42,49》》开：31√
248期：《《01,02,05,07,09,11,15,21,24,26,29,34,35,43,46,47》》开：11√
249期：《《08,11,12,16,19,26,29,30,32,35,38,39,41,42,44,45》》开：32√
250期：《《04,06,08,10,12,19,22,27,30,32,36,39,40,41,42,45》》开：24x
251期：《《07,10,15,20,22,23,26,29,31,32,38,39,41,42,43,49》》开：中？
