n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 1 |
8 | 5 |
9 | 29 |
10 | 53 |
11 | 103 |
12 | 395 |
13 | 1381 |
14 | 4229 |
15 | 19741 |
16 | 89165 |
17 | 570891 |
18 | 3054965 |
19 | 21029525 |
20 | 147769545 |
21 | 1255506947 |
[1,1,1,1,1,1,1,5,29,53,103,395,1381,4229,19741, 89165,570891,3054965,21029525,147769545, 1255506947] |