n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 7 |
6 | 13 |
7 | 32 |
8 | 71 |
9 | 170 |
10 | 406 |
11 | 1002 |
12 | 2469 |
13 | 6204 |
14 | 15644 |
15 | 39871 |
16 | 102116 |
17 | 263325 |
18 | 682079 |
19 | 1775600 |
20 | 4640220 |
[1,1,2,3,7,13,32,71,170,406,1002,2469,6204,15644, 39871,102116,263325,682079,1775600,4640220] |