074期：02,03,05,06,09,10,11,15,16,18,19,21,24,25,28,29,31,33,34,35,39,40,41,42··（共半数）开18准
075期：01,02,03,07,10,11,13,15,19,21,22,23,25,32,36,37,38,39,41,42,43,44,47,48··（共半数）开21准
076期：01,03,04,08,09,11,12,16,18,22,23,28,29,30,31,33,37,38,39,40,42,46,47,48··（共半数）开10错
077期：04,06,12,14,15,18,22,23,24,25,26,27,28,29,32,33,34,37,40,41,42,43,45,47··（共半数）开22准
078期：02,03,07,13,14,16,18,19,22,23,31,32,33,37,38,40,41,42,43,44,46,47,48,49··（共半数）开17错
079期：02,03,05,06,08,09,10,15,16,18,19,22,23,24,26,31,32,33,34,36,39,41,47,49··（共半数）开？？！