n | a(n) |
---|---|
1 | 9 |
2 | 60 |
3 | 336 |
4 | 1728 |
5 | 8448 |
6 | 39936 |
7 | 184320 |
8 | 835584 |
9 | 3735552 |
10 | 16515072 |
11 | 72351744 |
12 | 314572800 |
13 | 1358954496 |
14 | 5838471168 |
15 | 24964497408 |
16 | 106300440576 |
17 | 450971566080 |
18 | 1906965479424 |
19 | 8040178778112 |
20 | 33809982554112 |
21 | 141836999983104 |
[9,60,336,1728,8448,39936,184320,835584,3735552, 16515072,72351744,314572800,1358954496,5838471168, 24964497408,106300440576,450971566080, 1906965479424,8040178778112,33809982554112, 141836999983104] |