n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 12 |
3 | 69 |
4 | 612 |
5 | 8853 |
6 | 217041 |
7 | 9245253 |
8 | 695682342 |
9 | 93580638024 |
10 | 22713677612832 |
11 | 10025101876435413 |
12 | 8100572528598910191 |
13 | 12054728928174188426943 |
14 | 33214476295395054879355617 |
15 | 170255688895444623691322464599 |
[1,3,12,69,612,8853,217041,9245253,695682342, 93580638024,22713677612832,10025101876435413, 8100572528598910191,12054728928174188426943, 33214476295395054879355617, 170255688895444623691322464599] |