292期：01,02,04,05,07,08,09,11,12,15,16,17,18,22,27,28,29,30,32,33,34,36,37,40,41,42,43,44··（共半数）开02准
293期：01,05,06,07,08,09,13,14,16,17,19,21,23,24,26,30,31,35,36,39,40,41,42,45,46,47,48,49··（共半数）开47准
294期：01,02,05,07,08,10,11,16,17,20,21,22,25,26,28,29,31,32,33,34,35,39,41,44,46,47,48,49··（共半数）开18错
295期：03,04,05,07,08,09,10,12,13,14,16,17,20,21,27,30,32,34,35,37,39,41,42,43,45,46,48,49··（共半数）开05准
296期：01,02,07,08,10,12,14,15,16,18,19,20,21,22,23,25,26,28,29,30,32,33,40,42,43,44,47,49··（共半数）开22准
297期：01,04,05,06,10,11,15,16,18,19,20,22,25,26,27,29,30,32,33,34,35,36,37,39,42,43,47,49··（共半数）开44错
298期：01,02,03,05,06,09,12,15,16,18,20,22,23,24,27,31,33,35,36,38,39,41,42,43,44,45,46,49··（共半数）开？？！