n | a(n) |
---|---|
5 | 5 |
6 | 450 |
7 | 18900 |
8 | 588000 |
9 | 15876000 |
10 | 400075200 |
11 | 9779616000 |
12 | 237105792000 |
13 | 5779453680000 |
14 | 142845262560000 |
15 | 3599700616512000 |
16 | 92818726640640000 |
17 | 2454539660052480000 |
18 | 66664716210892800000 |
19 | 1861170036255129600000 |
[5,450,18900,588000,15876000,400075200,9779616000, 237105792000,5779453680000,142845262560000, 3599700616512000,92818726640640000, 2454539660052480000,66664716210892800000, 1861170036255129600000] |