n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 60 |
4 | 24 |
5 | 15120 |
6 | 720 |
7 | 8648640 |
8 | 40320 |
9 | 8821612800 |
10 | 3628800 |
11 | 14079294028800 |
12 | 479001600 |
13 | 32382376266240000 |
14 | 87178291200 |
15 | 101421602465863680000 |
16 | 20922789888000 |
17 | 415017197290314178560000 |
18 | 6402373705728000 |
19 | 2149789081963827444940800000 |
[1,2,60,24,15120,720,8648640,40320,8821612800, 3628800,14079294028800,479001600, 32382376266240000,87178291200, 101421602465863680000,20922789888000, 415017197290314178560000,6402373705728000, 2149789081963827444940800000] |