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