n | a(n) |
---|---|
1 | 3 |
2 | 9 |
3 | 40 |
4 | 348 |
5 | 2370 |
6 | 20606 |
7 | 212842 |
8 | 2134959 |
9 | 21085549 |
10 | 211716164 |
11 | 2136631932 |
12 | 21522095442 |
13 | 217024139551 |
14 | 2193065402495 |
15 | 22187387560680 |
16 | 224679112979344 |
17 | 2277631748750522 |
18 | 23112487299379689 |
19 | 234748284433308243 |
[3,9,40,348,2370,20606,212842,2134959,21085549, 211716164,2136631932,21522095442,217024139551, 2193065402495,22187387560680,224679112979344, 2277631748750522,23112487299379689, 234748284433308243] |