n | a(n) |
---|---|
2 | 2 |
3 | 7 |
4 | 25 |
5 | 155 |
6 | 1109 |
7 | 6599 |
8 | 41916 |
9 | 268294 |
10 | 1804922 |
11 | 12288435 |
12 | 84812079 |
13 | 591842347 |
14 | 4174903242 |
15 | 29718998597 |
16 | 213198431987 |
[2,7,25,155,1109,6599,41916,268294,1804922, 12288435,84812079,591842347,4174903242, 29718998597,213198431987] |