309期：大头龙{{02,04,05,06,07,09,13,15,17,21,22,23,24,29,30,33,34,37,39,40,41,44,45,47}}开：09有
310期：大头龙{{02,03,05,06,07,12,15,17,21,22,24,26,27,29,31,32,36,41,42,43,44,45,46,49}}开：04无
311期：大头龙{{01,03,05,06,07,10,11,14,15,19,23,24,25,27,30,32,34,35,36,39,42,43,46,47}}开：21无
312期：大头龙{{02,05,07,08,10,13,17,19,20,22,24,25,28,31,33,35,37,38,39,40,43,46,47,49}}开：？？