n | a(n) |
---|---|
1 | 9 |
2 | 81 |
3 | 351 |
4 | 1953 |
5 | 9999 |
6 | 52821 |
7 | 275769 |
8 | 1446381 |
9 | 7572429 |
10 | 39673377 |
11 | 207796977 |
12 | 1088500725 |
13 | 5701622643 |
14 | 29865934989 |
15 | 156441006369 |
16 | 819457342785 |
17 | 4292413923915 |
18 | 22484179383741 |
19 | 117774808544331 |
20 | 616918515422625 |
[9,81,351,1953,9999,52821,275769,1446381,7572429, 39673377,207796977,1088500725,5701622643, 29865934989,156441006369,819457342785, 4292413923915,22484179383741,117774808544331, 616918515422625] |