n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 9 |
3 | 69 |
4 | 513 |
5 | 3789 |
6 | 27945 |
7 | 206037 |
8 | 1518993 |
9 | 11198493 |
10 | 82558521 |
11 | 608644773 |
12 | 4487100705 |
13 | 33080169069 |
14 | 243876313161 |
15 | 1797924789621 |
16 | 13254807348657 |
17 | 97718168662461 |
18 | 720405829778265 |
19 | 5311034444054853 |
20 | 39154440039154497 |
21 | 288657547023732237 |
22 | 2128064642743736169 |
[0,1,9,69,513,3789,27945,206037,1518993,11198493, 82558521,608644773,4487100705,33080169069, 243876313161,1797924789621,13254807348657, 97718168662461,720405829778265,5311034444054853, 39154440039154497,288657547023732237, 2128064642743736169] |