n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 67 |
3 | 477 |
4 | 3363 |
5 | 23741 |
6 | 168451 |
7 | 1202685 |
8 | 8641539 |
9 | 62470141 |
10 | 454164483 |
11 | 3319054333 |
12 | 24371503107 |
13 | 179736723453 |
14 | 1330803769347 |
15 | 9889323810813 |
16 | 73733148770307 |
17 | 551423090098173 |
18 | 4135500638060547 |
[1,9,67,477,3363,23741,168451,1202685,8641539, 62470141,454164483,3319054333,24371503107, 179736723453,1330803769347,9889323810813, 73733148770307,551423090098173,4135500638060547] |