n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 9 |
4 | 58 |
5 | 469 |
6 | 4530 |
7 | 50491 |
8 | 634790 |
9 | 8861043 |
10 | 135750454 |
11 | 2262315973 |
12 | 40726646802 |
13 | 787471241647 |
14 | 16275700505510 |
15 | 358103286781293 |
16 | 8357593147404346 |
17 | 206241859929682177 |
18 | 5366082228239257410 |
[1,2,9,58,469,4530,50491,634790,8861043,135750454, 2262315973,40726646802,787471241647, 16275700505510,358103286781293,8357593147404346, 206241859929682177,5366082228239257410] |