n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 1 |
8 | 13 |
9 | 37 |
10 | 65 |
11 | 115 |
12 | 397 |
13 | 1335 |
14 | 4065 |
15 | 16853 |
16 | 83455 |
17 | 458373 |
18 | 2464107 |
19 | 13365801 |
20 | 84069939 |
21 | 594053347 |
[1,1,1,1,1,1,1,13,37,65,115,397,1335,4065,16853, 83455,458373,2464107,13365801,84069939,594053347] |