n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 120 |
6 | 720 |
7 | 5040 |
8 | 40320 |
9 | 287280 |
10 | 1865520 |
11 | 11345160 |
12 | 66349464 |
13 | 381523758 |
14 | 2193664790 |
15 | 12764590275 |
16 | 75796724309 |
17 | 455383613924 |
18 | 2750869551868 |
19 | 16635586999056 |
20 | 100439873614656 |
21 | 604666567043712 |
22 | 3629299734118656 |
23 | 21736009354060800 |
24 | 130082373922081536 |
[1,1,2,6,24,120,720,5040,40320,287280,1865520, 11345160,66349464,381523758,2193664790, 12764590275,75796724309,455383613924, 2750869551868,16635586999056,100439873614656, 604666567043712,3629299734118656, 21736009354060800,130082373922081536] |