016期：大头龙{{01,02,07,11,12,13,14,15,19,21,22,25,27,31,32,34,36,37,39,40,41,43,45,48}}开：12有
017期：大头龙{{03,05,06,08,11,12,15,17,21,25,26,27,28,29,30,31,33,34,39,40,41,43,45,49}}开：04无
018期：大头龙{{02,03,05,06,07,08,10,11,12,14,16,17,18,21,26,28,30,32,34,36,40,41,47,48}}开：31无
019期：大头龙{{02,05,07,09,13,17,18,19,20,21,22,26,29,30,33,35,39,40,42,44,46,47,48,49}}开：40有
020期：大头龙{{01,02,03,04,07,08,09,10,15,18,19,21,22,23,28,36,37,39,41,43,44,46,47,49}}开：？？