n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 4 |
6 | 9 |
7 | 30 |
8 | 39 |
9 | 212 |
10 | 249 |
11 | 421 |
12 | 2312 |
13 | 2559 |
14 | 30045 |
15 | 32589 |
16 | 510511 |
17 | 512820 |
18 | 543099 |
19 | 1021050 |
20 | 9729723 |
21 | 10242789 |
22 | 233335659 |
23 | 446185742 |
[0,1,2,3,4,9,30,39,212,249,421,2312,2559,30045, 32589,510511,512820,543099,1021050,9729723, 10242789,233335659,446185742] |