n | a(n) |
---|---|
1 | 1 |
2 | 13 |
3 | 74 |
4 | 1092 |
5 | 4864 |
6 | 59200 |
7 | 346112 |
8 | 4756752 |
9 | 19436692 |
10 | 251916288 |
11 | 1294876800 |
12 | 20786304000 |
13 | 79541043200 |
14 | 1073030266880 |
15 | 5303003316224 |
16 | 81061789640832 |
17 | 324992122224640 |
18 | 4102172934143680 |
19 | 20588576135708672 |
20 | 376372958524932096 |
[1,13,74,1092,4864,59200,346112,4756752,19436692, 251916288,1294876800,20786304000,79541043200, 1073030266880,5303003316224,81061789640832, 324992122224640,4102172934143680, 20588576135708672,376372958524932096] |