320期：02,07,09,10,11,12,13,15,17,18,23,24,25,26,27,28,29,30,31,32,36,40,41,42,43,45,46,48··（共半数）开42准
321期：06,08,09,10,11,12,13,15,16,18,20,21,23,24,25,28,31,33,34,36,37,39,40,41,43,44,45,46··（共半数）开22错
322期：02,04,05,06,12,13,14,16,19,21,23,25,26,27,29,30,31,34,35,37,38,40,41,42,46,47,48,49··（共半数）开？？！