166期半数<<01,03,04,05,06,10,11,12,13,16,18,19,20,24,27,29,33,34,35,38,40,42,43,44,45,47,48,49>>】开24准
167期半数<<02,03,04,07,08,17,19,20,21,23,24,27,29,30,31,32,35,36,38,39,40,41,42,43,44,46,47,48>>】开41准
168期半数<<02,04,05,06,08,09,10,11,12,13,17,18,19,22,23,29,30,32,35,36,37,39,41,43,45,47,48,49>>】开28错
169期半数<<02,03,06,07,08,10,11,13,14,16,17,18,19,25,26,29,30,31,32,33,34,35,36,38,42,43,45,48>>】开39错
170期半数<<01,02,03,04,06,09,12,15,16,18,19,20,22,23,26,27,32,33,34,36,38,39,42,43,44,45,47,49>>】开？？