n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 7 |
4 | 9 |
5 | 31 |
6 | 403 |
7 | 757 |
8 | 2873 |
9 | 12607 |
10 | 333051 |
11 | 761377 |
12 | 3699435 |
13 | 16383121 |
14 | 108710085 |
15 | 4855474267 |
16 | 13594184793 |
17 | 76375572751 |
18 | 388660153867 |
19 | 2504206435681 |
20 | 20148774553859 |
21 | 1556349601444477 |
22 | 10470804739432665 |
23 | 113472934257201031 |
24 | 1621680033815396315 |
[1,1,1,7,9,31,403,757,2873,12607,333051,761377, 3699435,16383121,108710085,4855474267,13594184793, 76375572751,388660153867,2504206435681, 20148774553859,1556349601444477,10470804739432665, 113472934257201031,1621680033815396315] |