n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 70 |
3 | 510 |
4 | 3720 |
5 | 27142 |
6 | 198034 |
7 | 1444904 |
8 | 10542368 |
9 | 76919662 |
10 | 561224422 |
11 | 4094828862 |
12 | 29876859864 |
13 | 217988781808 |
14 | 1590498774316 |
15 | 11604663002012 |
16 | 84670422615182 |
17 | 617775842744470 |
18 | 4507441679052256 |
19 | 32887382581680414 |
[1,10,70,510,3720,27142,198034,1444904,10542368, 76919662,561224422,4094828862,29876859864, 217988781808,1590498774316,11604663002012, 84670422615182,617775842744470,4507441679052256, 32887382581680414] |