n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 36 |
3 | 200 |
4 | 1080 |
5 | 5712 |
6 | 29792 |
7 | 153792 |
8 | 787680 |
9 | 4009280 |
10 | 20304768 |
11 | 102405888 |
12 | 514678528 |
13 | 2579028480 |
14 | 12890311680 |
15 | 64283809792 |
16 | 319954540032 |
17 | 1589720712192 |
18 | 7886437652480 |
19 | 39069462835200 |
20 | 193307835764736 |
21 | 955361266917376 |
22 | 4716674314223616 |
23 | 23264437702656000 |
[1,6,36,200,1080,5712,29792,153792,787680,4009280, 20304768,102405888,514678528,2579028480, 12890311680,64283809792,319954540032, 1589720712192,7886437652480,39069462835200, 193307835764736,955361266917376,4716674314223616, 23264437702656000] |