273期：大围：01,02,04,06,10,14,15,17,18,21,22,23,24,28,29,33,35,36,38,40,41,43,44,45（共半数）开41准
274期：大围：01,02,03,05,07,08,11,12,15,17,21,23,25,26,31,32,34,36,37,40,41,42,46,47（共半数）开49错
275期：大围：04,05,06,08,09,10,11,12,17,19,20,21,25,27,28,33,37,38,40,41,43,44,45,48（共半数）开41准
276期：大围：02,03,04,12,14,16,22,23,24,25,26,27,30,31,33,34,36,39,43,44,45,46,47,48（共半数）开？？√【？中？】