n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 7 |
3 | 61 |
4 | 671 |
5 | 9031 |
6 | 144495 |
7 | 2685817 |
8 | 56953279 |
9 | 1357947691 |
10 | 35979939623 |
11 | 1049152023349 |
12 | 33395827252815 |
13 | 1152480295105231 |
14 | 42864668012537311 |
15 | 1709501546902968817 |
16 | 72778339220927383295 |
17 | 3294475298046105653971 |
18 | 158016649702088758467159 |
[0,1,7,61,671,9031,144495,2685817,56953279, 1357947691,35979939623,1049152023349, 33395827252815,1152480295105231,42864668012537311, 1709501546902968817,72778339220927383295, 3294475298046105653971,158016649702088758467159] |