n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 50 |
4 | 850 |
5 | 22100 |
6 | 806806 |
7 | 40340300 |
8 | 2584263500 |
9 | 209609328500 |
10 | 20993420690550 |
11 | 2561197324247100 |
12 | 368819285671473000 |
13 | 62699278564150410000 |
14 | 12294076739210974071000 |
15 | 2766341857504878226501200 |
[1,1,5,50,850,22100,806806,40340300,2584263500, 209609328500,20993420690550,2561197324247100, 368819285671473000,62699278564150410000, 12294076739210974071000,2766341857504878226501200] |