278期：大头龙{{02,03,05,07,11,12,15,16,17,19,20,21,22,23,25,29,30,32,35,40,44,45,47,48}}开：02有
279期：大头龙{{01,03,07,08,11,12,14,17,18,21,25,29,30,31,32,33,34,36,37,38,42,45,47,48}}开：10无
280期：大头龙{{02,03,04,06,07,09,10,13,14,17,18,23,25,28,30,31,32,37,39,41,42,45,46,48}}开：15无
281期：大头龙{{02,05,06,11,13,14,20,21,25,26,27,29,31,33,34,36,39,42,43,44,45,47,48,49}}开：？？