n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 5 |
4 | 17 |
5 | 109 |
6 | 649 |
7 | 5285 |
8 | 44513 |
9 | 448861 |
10 | 4836601 |
11 | 58743125 |
12 | 766520657 |
13 | 10939702669 |
14 | 167136559849 |
15 | 2746173173765 |
16 | 48016925121473 |
17 | 893361709338301 |
18 | 17582667488919001 |
19 | 365487998075525045 |
20 | 7994319232001122097 |
21 | 183644125043688405229 |
22 | 4418905413530661307849 |
[1,1,5,17,109,649,5285,44513,448861,4836601, 58743125,766520657,10939702669,167136559849, 2746173173765,48016925121473,893361709338301, 17582667488919001,365487998075525045, 7994319232001122097,183644125043688405229, 4418905413530661307849] |