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