017期：01,02,03,04,05,06,07,09,10,12,15,19,21,22,25,26,27,28,34,35,36,38,40,41,42,46,47,49··（共半数）开40准
018期：01,02,04,05,06,07,09,10,12,14,17,19,20,21,23,24,25,26,27,29,33,34,39,41,42,45,47,49··（共半数）开10准
019期：01,07,08,09,10,11,13,14,15,16,17,20,21,22,24,27,31,36,38,39,40,41,42,43,44,45,46,47··（共半数）开04错
020期：01,03,04,05,09,10,12,13,14,15,16,20,21,22,23,24,26,29,32,33,35,36,37,40,43,44,45,49··（共半数）开33准
021期：01,02,03,06,07,08,09,12,13,16,17,18,20,23,25,26,29,32,34,36,37,39,40,42,43,44,45,46··（共半数）开12准
022期：01,02,05,08,10,11,16,18,20,21,22,24,26,27,28,30,32,33,34,36,37,39,40,41,42,44,45,46··（共半数）开34准
023期：01,02,03,04,08,10,11,13,14,15,16,17,18,19,20,21,22,23,25,27,30,31,33,34,38,39,48,49··（共半数）开29错
024期：03,04,05,08,10,11,12,13,14,15,18,19,20,21,24,25,29,31,32,33,34,39,41,42,44,45,47,48··（共半数）开45准
025期：02,03,05,06,07,09,10,11,13,14,15,17,18,20,21,22,24,26,28,29,30,32,33,42,43,44,46,48··（共半数）开11准
026期：01,02,04,05,06,07,11,12,13,14,16,18,20,21,23,24,26,28,29,31,33,36,40,41,42,44,45,48··（共半数）开31准
=============10中8=============
027期：01,02,05,06,09,10,13,14,16,17,18,19,20,23,25,27,28,32,38,39,40,43,44,45,46,47,48,49··（共半数）开49准
028期：04,05,06,07,08,09,10,11,12,13,15,16,17,18,25,29,30,31,32,33,34,37,38,39,42,45,46,47··（共半数）开34准
029期：01,02,03,04,05,11,12,15,16,17,19,20,21,22,23,24,26,27,28,30,31,33,37,38,40,41,47,48··（共半数）开13错
030期：01,02,04,10,15,16,17,19,22,23,24,26,27,28,29,30,32,35,36,37,39,40,41,42,46,47,48,49··（共半数）开48准
031期：03,04,05,06,07,08,09,10,12,15,16,19,20,22,23,25,27,28,29,31,32,33,34,35,38,40,42,46··（共半数）开24错