n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 45 |
3 | 1890 |
4 | 56700 |
5 | 748440 |
6 | 10216206000 |
7 | 8756748000 |
8 | 2841962760000 |
9 | 24946749107280000 |
10 | 8232427205402400000 |
11 | 103279541304139200000 |
12 | 3101484625363300176000000 |
13 | 1431454442475369312000000 |
[1,3,45,1890,56700,748440,10216206000,8756748000, 2841962760000,24946749107280000, 8232427205402400000,103279541304139200000, 3101484625363300176000000, 1431454442475369312000000] |