n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 120 |
6 | 720 |
7 | 5039 |
8 | 40316 |
9 | 362851 |
10 | 3628561 |
11 | 39914615 |
12 | 478979481 |
13 | 6226774954 |
14 | 87175314872 |
15 | 1307635379670 |
16 | 20922240412500 |
17 | 355679137660826 |
18 | 6402240370021199 |
19 | 121642823201649058 |
20 | 2432860847996122437 |
21 | 51090157192742729183 |
22 | 1123984974735953018069 |
[1,1,2,6,24,120,720,5039,40316,362851,3628561, 39914615,478979481,6226774954,87175314872, 1307635379670,20922240412500,355679137660826, 6402240370021199,121642823201649058, 2432860847996122437,51090157192742729183, 1123984974735953018069] |