n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 18 |
3 | 268 |
4 | 5320 |
5 | 129474 |
6 | 3700550 |
7 | 121016160 |
8 | 4448701704 |
9 | 181463572394 |
10 | 8130511993010 |
11 | 396880976034092 |
12 | 20963000461338000 |
13 | 1191187898025406514 |
14 | 72455444438093714542 |
15 | 4697146562744837487104 |
16 | 323299667265950287087968 |
[1,2,18,268,5320,129474,3700550,121016160, 4448701704,181463572394,8130511993010, 396880976034092,20963000461338000, 1191187898025406514,72455444438093714542, 4697146562744837487104,323299667265950287087968] |