180期：05,06,08,09,11,13,14,15,18,19,20,21,22,25,29,30,31,32,34,35,37,39,40,41,42,46,47,48··（共半数）开21准
181期：01,04,07,08,10,11,14,15,16,19,21,22,23,24,25,27,29,30,31,34,35,36,38,42,44,47,48,49··（共半数）开19准
182期：01,02,03,05,06,07,10,11,15,16,17,19,20,22,23,24,27,30,33,34,36,37,39,40,41,44,45,47··（共半数）开41准
183期：01,02,03,06,10,11,13,14,16,20,21,22,25,26,27,29,30,32,34,35,37,39,40,41,42,43,44,46··（共半数）开24错
184期：01,02,03,05,07,10,13,14,15,16,19,20,22,25,26,29,32,34,35,36,39,41,43,45,46,47,48,49··（共半数）开01准
185期：01,05,06,07,08,09,10,13,14,15,17,19,20,22,23,24,26,27,29,31,35,38,39,44,45,46,47,48··（共半数）开36错
186期：02,03,04,06,10,11,12,13,14,15,16,17,23,26,28,29,30,31,33,36,37,38,39,40,45,46,48,49··（共半数）开？？！