252期：大头龙{{01,04,08,10,11,12,14,16,20,21,22,23,24,28,31,32,33,36,38,41,44,46,47,49}}开：24有
253期：大头龙{{01,02,03,05,08,09,10,11,12,14,17,18,20,23,24,26,32,37,41,43,44,46,47,49}}开：19无
254期：大头龙{{01,02,03,04,06,13,14,16,17,18,19,20,22,25,31,33,34,37,38,43,44,45,48,49}}开：13有
255期：大头龙{{01,02,03,08,10,11,12,14,17,19,23,25,26,27,30,31,32,35,36,40,42,47,48,49}}开：33无
256期：大头龙{{02,05,06,07,10,11,12,13,14,15,16,24,25,26,27,30,31,36,38,41,42,44,45,46}}开：？？