251期：<<01,03,08,12,14,15,16,20,22,23,25,33,39,40,44,46>>开：14有
252期：<<01,04,05,06,10,12,15,18,30,31,41,42,44,46,47,49>>开：36无
253期：<<05,08,09,11,14,15,20,21,28,31,32,34,35,42,46,48>>开：47无
254期：<<02,04,05,06,07,09,11,14,16,27,30,32,36,43,45,48>>开：27有
255期：<<01,02,15,17,20,22,25,26,27,29,31,34,35,43,45,47>>开：88
