219期====02,03,07,10,11,12,13,16,19,21,22,24,25,28,29,32,33,34,37,38,43,44,47,49··(共半数) 中:25准
220期====02,03,04,06,07,09,10,12,13,14,15,16,21,28,33,34,36,37,38,39,41,42,44,48··(共半数) 中:30错
221期====02,04,05,07,10,11,12,13,16,17,20,23,26,27,31,34,35,37,38,39,40,42,43,47··(共半数) 中:?