n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 41 |
4 | 329 |
5 | 3090 |
6 | 33654 |
7 | 420792 |
8 | 5981688 |
9 | 95782320 |
10 | 1712555280 |
11 | 33909364800 |
12 | 737868052800 |
13 | 17521164259200 |
14 | 451126883894400 |
15 | 12522623670144000 |
16 | 372847351488998400 |
17 | 11853064556660275200 |
18 | 400718191717647820800 |
19 | 14354714544806716416000 |
20 | 543129329390299739136000 |
21 | 21642934280974058207232000 |
[1,6,41,329,3090,33654,420792,5981688,95782320, 1712555280,33909364800,737868052800, 17521164259200,451126883894400,12522623670144000, 372847351488998400,11853064556660275200, 400718191717647820800,14354714544806716416000, 543129329390299739136000, 21642934280974058207232000] |