n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 76 |
4 | 1620 |
5 | 51780 |
6 | 2310000 |
7 | 136898496 |
8 | 10393064640 |
9 | 982930939200 |
10 | 113269208976000 |
11 | 15619762139984640 |
12 | 2539231615282602240 |
13 | 480507998223110457600 |
14 | 104704722014993388288000 |
[1,1,6,76,1620,51780,2310000,136898496, 10393064640,982930939200,113269208976000, 15619762139984640,2539231615282602240, 480507998223110457600,104704722014993388288000] |