n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 24 |
5 | 324 |
6 | 3600 |
7 | 38148 |
8 | 398112 |
9 | 4132596 |
10 | 42818208 |
11 | 443356212 |
12 | 4589665248 |
13 | 47509091508 |
14 | 491769434400 |
15 | 5090291998452 |
16 | 52689326584800 |
17 | 545383755284532 |
18 | 5645229662006688 |
19 | 58433377222329972 |
20 | 604839778633231200 |
21 | 6260653947359090868 |
22 | 64803587809297981728 |
[0,0,0,0,24,324,3600,38148,398112,4132596, 42818208,443356212,4589665248,47509091508, 491769434400,5090291998452,52689326584800, 545383755284532,5645229662006688, 58433377222329972,604839778633231200, 6260653947359090868,64803587809297981728] |