257期：大头龙{{01,03,05,06,07,09,20,21,23,26,28,30,31,32,33,35,37,38,40,41,42,45,48,49}}开：48有
258期：大头龙{{02,08,09,11,13,14,18,20,21,23,25,26,28,31,34,36,37,39,40,43,45,46,48,49}}开：12无
259期：大头龙{{01,02,04,06,07,08,13,14,16,20,23,27,28,31,35,37,38,40,42,44,45,47,48,49}}开：45有
260期：大头龙{{02,04,07,08,11,13,14,21,22,24,27,28,29,35,36,37,38,39,40,41,42,43,45,48}}开：25无
261期：大头龙{{01,06,10,11,12,14,16,17,19,21,22,24,26,28,30,32,35,36,38,39,41,43,44,45}}开：？？