n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 11 |
5 | 55 |
6 | 419 |
7 | 1471 |
8 | 483673 |
9 | 2756471 |
10 | 1902667 |
11 | 139975567 |
12 | 79889883359 |
13 | 2616245762827 |
14 | 97206324428221 |
15 | 2108611283335 |
16 | 2036091547932503 |
17 | 5773060629575464637 |
18 | 737098816821260577403 |
19 | 3053528216809788427627 |
20 | 496374854736310558422419 |
[1,1,2,11,55,419,1471,483673,2756471,1902667, 139975567,79889883359,2616245762827, 97206324428221,2108611283335,2036091547932503, 5773060629575464637,737098816821260577403, 3053528216809788427627,496374854736310558422419] |