n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 6 |
5 | 30 |
6 | 120 |
7 | 720 |
8 | 15120 |
9 | 1164240 |
10 | 15135120 |
11 | 283931716867999200 |
12 | 14510088480716327580681600 |
13 | 3280681990411073806237542217555200 |
14 | 936436634805345771521186435213604447980767985241556128000 |
[1,1,2,6,6,30,120,720,15120,1164240,15135120, 283931716867999200,14510088480716327580681600, 3280681990411073806237542217555200, 93643663480534577152118643521360444798076798524155\ 6128000] |