n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 3 |
8 | 5 |
9 | 11 |
10 | 21 |
11 | 39 |
12 | 105 |
13 | 351 |
14 | 1205 |
15 | 4629 |
16 | 16631 |
17 | 70563 |
18 | 335933 |
19 | 1961161 |
20 | 12194507 |
21 | 84627809 |
22 | 599408761 |
[1,1,1,1,1,1,3,5,11,21,39,105,351,1205,4629,16631, 70563,335933,1961161,12194507,84627809,599408761] |