n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 63 |
4 | 555 |
5 | 6303 |
6 | 87381 |
7 | 1434891 |
8 | 27272727 |
9 | 589486923 |
10 | 14288622513 |
11 | 384034370151 |
12 | 11338782475059 |
13 | 364911575317383 |
14 | 12716046006693165 |
15 | 477070508584969299 |
16 | 19174662804725408175 |
17 | 822058028667720327891 |
[1,3,9,63,555,6303,87381,1434891,27272727, 589486923,14288622513,384034370151,11338782475059, 364911575317383,12716046006693165, 477070508584969299,19174662804725408175, 822058028667720327891] |