239期：01,02,04,05,09,10,12,14,15,16,17,18,20,21,22,24,25,27,28,29,33,34,36,37,39,40,41,45··（共半数）开05准
240期：01,02,03,04,05,08,10,14,15,16,18,19,20,21,22,29,30,31,32,33,34,35,36,37,39,41,46,47··（共半数）开27错
241期：01,03,05,06,07,11,14,15,17,19,21,23,25,29,31,32,33,36,37,38,39,40,41,42,43,45,46,47··（共半数）开49错
242期：03,05,07,08,10,11,12,13,14,17,18,19,21,22,23,25,28,29,30,31,37,39,40,41,45,46,47,48··（共半数）开？？！