290期〖特围〗01,02,07,10,12,13,15,18,19,20,21,24,26,29,30,31,32,35,36,37,40,41,44,45,46,47,48,49·（共半数）开19准
291期〖特围〗02,03,06,11,14,15,19,20,22,23,24,25,26,27,28,29,30,31,33,35,36,39,40,41,43,47,48,49·（共半数）开44错
292期〖特围〗02,03,11,13,15,17,19,20,23,24,25,28,30,31,33,35,36,38,39,40,41,42,44,45,46,47,48,49·（共半数）开02准
293期〖特围〗01,04,09,10,12,13,14,15,16,18,19,20,21,23,25,28,29,30,33,34,36,38,40,43,45,46,47,49·（共半数）开47准
294期〖特围〗02,03,06,07,08,09,11,12,13,15,18,22,24,25,27,28,29,31,33,34,37,38,41,42,43,45,46,47·（共半数）开18准
295期〖特围〗01,02,05,06,07,08,11,12,13,14,17,20,21,22,24,25,26,29,30,32,34,35,36,37,38,39,40,49·（共半数）开05准
296期〖特围〗04,06,09,10,12,13,14,17,18,22,23,26,27,29,30,31,32,34,35,36,38,39,42,43,44,45,48,49·（共半数）开22准
297期〖特围〗02,03,04,06,08,11,12,13,14,18,19,20,22,23,24,25,27,28,29,31,32,33,34,37,38,39,41,46·（共半数）开44错
298期〖特围〗01,02,03,04,06,11,12,13,16,17,19,20,21,23,25,28,30,33,34,39,41,42,43,44,45,46,47,48·（共半数）开？？