n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 5 |
7 | 17 |
8 | 41 |
9 | 185 |
10 | 633 |
11 | 2157 |
12 | 7997 |
13 | 47735 |
14 | 277209 |
15 | 2208471 |
16 | 17450513 |
17 | 197122185 |
18 | 2176282667 |
19 | 31077679505 |
[1,1,1,1,1,5,17,41,185,633,2157,7997,47735,277209, 2208471,17450513,197122185,2176282667,31077679505] |