n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 120 |
6 | 600 |
7 | 3720 |
8 | 27240 |
9 | 229080 |
10 | 2170680 |
11 | 20452440 |
12 | 217008600 |
13 | 2550317880 |
14 | 32808887160 |
15 | 457907248920 |
16 | 6355848354360 |
17 | 95721761831160 |
18 | 1551458493435480 |
19 | 26890032710452440 |
20 | 495810323060597880 |
21 | 9097662007250393880 |
22 | 177624183228083188440 |
[1,1,2,6,24,120,600,3720,27240,229080,2170680, 20452440,217008600,2550317880,32808887160, 457907248920,6355848354360,95721761831160, 1551458493435480,26890032710452440, 495810323060597880,9097662007250393880, 177624183228083188440] |