n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 25 |
4 | 25 |
5 | 745 |
6 | 3145 |
7 | 40945 |
8 | 353425 |
9 | 4200625 |
10 | 49949425 |
11 | 666656425 |
12 | 9492440425 |
13 | 145513569625 |
14 | 2378864325625 |
15 | 41355134658625 |
16 | 761412592638625 |
17 | 14800232282598625 |
18 | 302834714220150625 |
[1,1,1,25,25,745,3145,40945,353425,4200625, 49949425,666656425,9492440425,145513569625, 2378864325625,41355134658625,761412592638625, 14800232282598625,302834714220150625] |