168期:半数【《01,03,04,05,07,09,10,11,13,16,19,22,25,29,31,33,34,35,37,38,40,41,45,49》】开:11准
169期:半数【《01,02,04,05,06,08,11,16,17,20,21,22,23,24,25,28,30,32,33,35,43,45,47,48》】开:33准
170期:半数【《01,03,06,09,14,15,16,20,21,23,24,25,26,27,29,37,40,42,43,44,45,47,48,49》】开:10错
171期:半数【《01,02,03,05,06,07,08,09,10,14,15,16,18,20,26,27,29,33,35,38,40,42,44,45》】开:23错
172期:半数【《02,03,05,06,07,08,09,11,12,16,20,21,22,23,26,27,30,33,34,36,38,40,42,45》】开:21准
173期:半数【《01,03,07,08,10,11,12,14,18,20,21,23,25,30,31,32,36,39,41,44,45,46,47,49》】开:？？？？