179期：01,02,03,05,07,12,14,15,17,18,19,21,22,24,25,27,28,30,33,38,39,42,48,49··（共半数）开15准
180期：01,04,07,08,13,14,15,18,19,20,21,23,24,27,30,33,34,35,36,37,42,46,47,49··（共半数）开21准
181期：03,04,08,12,13,16,19,22,23,27,28,30,31,33,34,36,38,39,41,43,45,46,48,49··（共半数）开19准
182期：02,05,06,07,10,12,16,17,19,21,23,26,27,28,30,31,32,33,34,38,43,44,45,47··（共半数）开41错
183期：02,03,04,05,07,10,12,15,16,17,21,23,24,26,27,31,32,33,34,35,37,38,42,46··（共半数）开24准
184期：02,03,04,05,06,07,09,10,12,14,15,16,24,25,30,32,33,35,36,38,39,42,45,48··（共半数）开？？！