241期01,02,07,09,14,16,18,20,21,22,23,24,26,35,42,43,45,47,48,49,（共20个）开20对
242期01,06,07,08,09,12,13,18,21,22,28,29,30,32,33,38,39,40,42,44,46,47,（共22个）开20错
243期01,03,04,07,08,12,13,14,15,16,24,25,29,30,35,36,37,41,42,46,47,49,（共22个）开18错
244期01,03,05,06,07,09,10,11,12,13,14,22,25,30,34,39,40,44,46,47,48,49,（共22个）开25对
245期01,04,07,09,10,12,13,15,16,18,20,21,25,30,32,37,38,41,45,47,49,（共21个）开37对
246期01,02,03,04,06,08,10,11,12,22,23,26,28,29,32,34,39,42,45,47,48,（共21个）开13错
247期06,08,11,17,18,20,24,26,28,29,30,31,32,33,36,37,42,43,44,45,47,48,（共22个）开03错
248期01,13,16,17,18,20,21,23,26,27,30,31,32,33,36,37,38,39,42,45,46,47,（共22个）开21准
249期01,05,07,08,09,10,12,18,19,24,25,29,31,34,35,36,37,41,42,43,44,48,（共22个）开29准
250期01,02,06,08,10,12,13,14,18,22,30,31,32,34,36,38,42,43,45,46,47,48,（共22个）开14准
251期02,05,06,12,13,16,17,18,22,23,24,25,27,28,30,35,37,39,42,46,47,48,49,（共23个）开34错
252期03,09,10,11,13,14,19,21,25,26,27,31,32,36,37,39,43,45,46,47,48,49,（共22个）开09准
253期01,02,10,11,13,15,20,21,22,24,25,26,27,31,34,35,37,39,43,44,47,48,49,（共23个）开26准
254期01,04,05,06,07,09,13,14,15,16,17,19,21,30,31,32,33,37,40,41,43,45,49,（共23个）开49准
255期04,05,06,08,11,16,17,19,21,23,24,29,31,32,33,35,36,40,41,42,44,46,47,48,（共24个）开01错
256期04,09,10,12,13,14,16,22,24,25,26,27,28,33,36,37,38,40,44,45,47,48,49,（共23个）开？