175期：02,04,08,09,12,13,14,15,17,19,20,21,23,25,27,31,32,34,35,37,39,41,42,43,44,45,48,49··（共半数）开35准
176期：02,03,04,06,07,11,13,15,19,20,23,25,26,29,30,31,32,33,34,36,37,38,41,43,44,45,46,47··（共半数）开35错
177期：01,05,06,08,09,10,12,13,14,15,18,19,22,24,26,29,30,33,35,36,37,39,44,45,46,47,48,49··（共半数）开39准
178期：01,02,03,05,06,07,08,11,13,15,16,18,20,24,26,27,34,35,36,37,38,41,42,43,44,45,47,48··（共半数）开48准
179期：01,03,04,05,07,15,16,17,22,24,25,26,27,28,30,33,34,35,36,37,38,39,40,41,42,46,47,49··（共半数）开27准
180期：02,06,07,10,11,12,14,15,17,19,23,25,26,27,28,29,30,33,36,38,39,40,41,45,46,47,48,49··（共半数）开03错
181期：01,02,04,07,10,15,16,17,18,20,21,22,25,26,27,29,31,32,34,36,39,41,42,43,45,46,47,49··（共半数）开49准
182期：04,05,06,07,08,09,11,12,16,18,19,20,21,22,25,28,29,30,31,35,36,37,38,39,40,42,46,49··（共半数）开09准
183期：02,05,06,07,10,13,14,17,18,19,20,21,22,25,28,30,31,34,35,36,38,40,41,42,43,45,47,48··（共半数）开41准
184期：02,04,05,06,09,10,14,15,18,20,21,23,26,27,29,30,31,34,36,38,40,41,42,43,44,45,46,49··（共半数）开31准
=============10中8=============
185期：03,04,05,07,08,11,13,14,15,16,17,18,20,22,23,24,25,28,29,30,34,36,39,40,41,43,45,47··（共半数）开33错