n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 6 |
4 | 16 |
5 | 120 |
6 | 540 |
7 | 5040 |
8 | 32256 |
9 | 362880 |
10 | 3024000 |
11 | 39916800 |
12 | 410572800 |
13 | 6227020800 |
14 | 76281004800 |
15 | 1307674368000 |
16 | 18598035456000 |
17 | 355687428096000 |
18 | 5762136335155200 |
19 | 121645100408832000 |
20 | 2211729098342400000 |
21 | 51090942171709440000 |
22 | 1030334000462807040000 |
[1,1,6,16,120,540,5040,32256,362880,3024000, 39916800,410572800,6227020800,76281004800, 1307674368000,18598035456000,355687428096000, 5762136335155200,121645100408832000, 2211729098342400000,51090942171709440000, 1030334000462807040000] |