218期：01,04,05,06,07,09,12,13,14,16,19,22,24,28,30,34,37,38,40,42,43,44,45,47··（共半数）开37准
219期：01,02,04,06,08,09,11,12,15,20,21,24,25,31,33,34,35,36,39,40,41,43,45,47··（共半数）开14错
220期：03,04,05,06,07,08,10,13,15,16,17,25,26,29,30,32,33,35,37,41,42,43,45,47··（共半数）开？？！