n | a(n) |
---|---|
10 | 1 |
11 | 55 |
12 | 1770 |
13 | 43680 |
14 | 916895 |
15 | 17259390 |
16 | 300500200 |
17 | 4935847320 |
18 | 77515521435 |
19 | 1174992339235 |
20 | 17310309456440 |
21 | 249145778809200 |
22 | 3517322746798575 |
23 | 48857840214014580 |
24 | 669413654240461560 |
25 | 9064807833193439800 |
[1,55,1770,43680,916895,17259390,300500200, 4935847320,77515521435,1174992339235, 17310309456440,249145778809200,3517322746798575, 48857840214014580,669413654240461560, 9064807833193439800] |