017期：大头龙{{01,02,03,05,06,07,08,09,11,13,20,23,28,29,30,31,32,35,36,37,42,43,45,47}}开：32有
018期：大头龙{{01,02,03,04,06,07,09,15,17,18,21,24,28,31,32,33,34,36,39,40,42,43,48,49}}开：39有
019期：大头龙{{04,06,08,09,10,15,16,17,18,20,22,23,24,25,31,33,35,36,39,40,42,43,46,48}}开：46有
020期：大头龙{{01,02,03,04,08,13,14,16,18,19,24,29,31,32,33,34,36,41,42,43,44,45,46,49}}开：12无
021期：大头龙{{01,02,03,04,07,09,10,11,12,15,16,17,19,23,26,32,34,35,36,37,41,43,44,48}}开：？？