151期半数<<01,02,05,06,07,11,12,16,19,20,23,24,25,26,27,29,30,33,35,36,37,40,41,42,43,45,48,49>>】开48准
152期半数<<04,05,13,14,15,16,17,18,19,21,23,24,25,27,28,30,31,32,33,34,35,36,37,42,44,45,46,49>>】开17准
153期半数<<02,03,05,06,08,09,10,18,20,21,22,23,24,26,31,32,34,36,37,38,42,43,44,45,46,47,48,49>>】开18准
154期半数<<01,02,05,06,07,08,10,11,14,15,16,18,20,21,22,26,29,33,34,36,37,39,41,43,45,46,47,48>>】开21准
155期半数<<01,02,04,06,07,08,09,10,11,12,13,20,23,24,25,26,28,30,34,35,37,38,40,42,44,46,47,48>>】开？？