n | a(n) |
---|---|
0 | 3 |
1 | 9 |
2 | 41 |
3 | 225 |
4 | 1313 |
5 | 7809 |
6 | 46721 |
7 | 280065 |
8 | 1679873 |
9 | 10078209 |
10 | 60467201 |
11 | 362799105 |
12 | 2176786433 |
13 | 13060702209 |
14 | 78364180481 |
15 | 470185017345 |
16 | 2821109972993 |
17 | 16926659575809 |
18 | 101559956930561 |
19 | 609359740534785 |
20 | 3656158441111553 |
[3,9,41,225,1313,7809,46721,280065,1679873, 10078209,60467201,362799105,2176786433, 13060702209,78364180481,470185017345, 2821109972993,16926659575809,101559956930561, 609359740534785,3656158441111553] |