-----+------------+---------+------
1 | 1 | 1 | 1
2 | 3 | 6 | 2
3 | 11 | 22 | 2
4 | 21 | 63 | 3
5 | 39 | 78 | 2
6 | 76 | 152 | 2
7 | 248 | 496 | 2
8 | 844 | 1688 | 2
9 | 1520 | 1520 | 1
10 | 2752 | 5504 | 2
11 | 9317 | 9317 | 1
12 | 17223 | 68892 | 4
13 | 31221 | 31221 | 1
14 | 57071 | 114142 | 2
15 | 99741 | 498705 | 5
16 | 589932 | 1769796 | 3（结束）
