填哪个数?二,按规律填数1.2,3,5,8,12,17,23,(),38.2.1,4,9,16,25,(),49.
问题描述:
填哪个数?
二,按规律填数
1.2,3,5,8,12,17,23,(),38.
2.1,4,9,16,25,(),49.
答
30
36