n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 30 |
4 | 330 |
5 | 4290 |
6 | 60060 |
7 | 1021020 |
8 | 29609580 |
9 | 917896980 |
10 | 33962188260 |
11 | 1290563153880 |
12 | 52913089309080 |
13 | 2275262840290440 |
14 | 106937353493650680 |
15 | 6309303856125390120 |
16 | 422723358360401138040 |
17 | 30013358443588480800840 |
18 | 2190975166381959098461320 |
[1,2,6,30,330,4290,60060,1021020,29609580, 917896980,33962188260,1290563153880, 52913089309080,2275262840290440, 106937353493650680,6309303856125390120, 422723358360401138040,30013358443588480800840, 2190975166381959098461320] |