1 1 2 2 3 5 5 7 10 15 15 20 27 37 52 () () ()()()() [填空]
问题描述:
1 1 2 2 3 5 5 7 10 15 15 20 27 37 52 () () ()()()() [填空]
答
53.55.57.72.75.77.
1 1 2 2 3 5 5 7 10 15 15 20 27 37 52 () () ()()()() [填空]
53.55.57.72.75.77.