n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 1 |
8 | 1 |
9 | 1 |
10 | 3 |
11 | 6 |
12 | 11 |
13 | 18 |
14 | 27 |
15 | 52 |
16 | 137 |
17 | 404 |
18 | 1237 |
19 | 3559 |
20 | 10401 |
21 | 31124 |
22 | 115055 |
23 | 457260 |
24 | 2084424 |
25 | 9632056 |
[1,1,1,1,1,1,1,1,1,3,6,11,18,27,52,137,404,1237, 3559,10401,31124,115055,457260,2084424,9632056] |