n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 6 |
4 | 27 |
5 | 108 |
6 | 405 |
7 | 1458 |
8 | 5103 |
9 | 17496 |
10 | 59049 |
11 | 196830 |
12 | 649539 |
13 | 2125764 |
14 | 6908733 |
15 | 22320522 |
16 | 71744535 |
17 | 229582512 |
18 | 731794257 |
19 | 2324522934 |
20 | 7360989291 |
21 | 23245229340 |
22 | 73222472421 |
23 | 230127770466 |
24 | 721764371007 |
25 | 2259436291848 |
[0,1,6,27,108,405,1458,5103,17496,59049,196830, 649539,2125764,6908733,22320522,71744535, 229582512,731794257,2324522934,7360989291, 23245229340,73222472421,230127770466,721764371007, 2259436291848] |