n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 9 |
4 | 98 |
5 | 1300 |
6 | 20515 |
7 | 376761 |
8 | 7907396 |
9 | 186884496 |
10 | 4914341925 |
11 | 142364319625 |
12 | 4505856912854 |
13 | 154718778284148 |
14 | 5729082486784839 |
15 | 227584583172284625 |
16 | 9654782997596059912 |
17 | 435659030617933827136 |
18 | 20836030169620907691465 |
[0,1,9,98,1300,20515,376761,7907396,186884496, 4914341925,142364319625,4505856912854, 154718778284148,5729082486784839, 227584583172284625,9654782997596059912, 435659030617933827136,20836030169620907691465] |