n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 1 |
8 | 3 |
9 | 9 |
10 | 19 |
11 | 33 |
12 | 55 |
13 | 157 |
14 | 613 |
15 | 2645 |
16 | 10617 |
17 | 38367 |
18 | 155201 |
19 | 818161 |
20 | 5194409 |
21 | 36087637 |
22 | 257389985 |
[1,1,1,1,1,1,1,3,9,19,33,55,157,613,2645,10617, 38367,155201,818161,5194409,36087637,257389985] |