n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 5 |
4 | 17 |
5 | 113 |
6 | 673 |
7 | 5669 |
8 | 48033 |
9 | 494081 |
10 | 5387009 |
11 | 65835109 |
12 | 871869745 |
13 | 12394430129 |
14 | 192177458593 |
15 | 3124415825605 |
16 | 55316788832065 |
17 | 1014225530028161 |
18 | 20139680768683777 |
19 | 411568350375102789 |
[1,1,1,5,17,113,673,5669,48033,494081,5387009, 65835109,871869745,12394430129,192177458593, 3124415825605,55316788832065,1014225530028161, 20139680768683777,411568350375102789] |