018期：16码[[01,02,04,05,09,10,19,24,30,36,38,42,44,45,46,49]]开：10√
019期：16码[[02,03,06,07,09,12,13,18,20,21,23,27,32,33,41,49]]开：04x
020期：16码[[01,13,14,15,17,22,24,25,30,33,35,38,40,44,46,47]]开：33√
021期：16码[[01,03,08,09,10,16,31,33,37,39,41,43,44,45,46,47]]开：12x
022期：16码[[03,05,06,07,08,11,13,14,15,27,28,34,37,38,44,45]]开：//