273期：大头龙{{01,02,03,05,08,12,13,14,15,17,21,22,23,24,26,27,29,30,36,39,41,43,46,48}}开：05有
274期：大头龙{{01,03,06,07,09,14,15,17,20,22,23,24,28,29,30,36,37,38,39,40,41,42,44,47}}开：24有
275期：大头龙{{01,04,07,08,09,11,13,15,20,23,26,27,29,31,32,33,35,37,38,41,43,44,48,49}}开：31有
276期：大头龙{{01,03,06,07,08,09,12,13,14,15,18,19,21,22,26,27,29,35,36,37,41,42,43,46}}开：01有
277期：大头龙{{03,04,05,07,08,10,11,12,15,17,19,23,24,27,28,30,32,35,36,39,40,45,48,49}}开：47无
278期：大头龙{{03,04,10,11,12,13,14,16,18,19,23,26,27,28,29,30,31,33,35,37,39,40,43,44}}开：41无
279期：大头龙{{04,06,08,10,11,13,14,16,18,20,21,22,23,25,27,28,30,32,35,37,39,45,47,49}}开：04有
280期：大头龙{{01,03,04,06,10,14,15,16,18,19,20,21,25,30,31,33,34,38,39,40,41,42,45,49}}开：20有
281期：大头龙{{01,02,04,09,11,13,14,15,16,17,18,22,23,26,27,28,30,32,35,36,37,42,46,47}}开：？？