225期:02,03,04,05,06,08,10,15,17,19,21,23,25,28,29,30,32,36,37,39,41,43,44,47··(共半数)开05准
226期:01,06,07,08,09,10,11,12,13,14,15,19,24,25,31,32,36,39,40,42,43,45,46,48··(共半数)开34错
227期:04,06,09,10,15,17,18,21,23,24,25,28,31,32,33,35,37,38,39,41,43,45,46,48··(共半数)开20错
228期:01,02,05,06,07,09,11,12,13,14,15,16,17,19,20,24,25,31,36,37,39,41,45,46··(共半数)开??!