n | a(n) |
---|---|
0 | 9 |
1 | 53 |
2 | 362 |
3 | 2790 |
4 | 24024 |
5 | 229080 |
6 | 2399760 |
7 | 27422640 |
8 | 339696000 |
9 | 4536362880 |
10 | 64988179200 |
11 | 994447238400 |
12 | 16190733081600 |
13 | 279499828608000 |
14 | 5100017213491200 |
15 | 98087346669312000 |
16 | 1983334021853184000 |
17 | 42063950934061056000 |
18 | 933754193111900160000 |
[9,53,362,2790,24024,229080,2399760,27422640, 339696000,4536362880,64988179200,994447238400, 16190733081600,279499828608000,5100017213491200, 98087346669312000,1983334021853184000, 42063950934061056000,933754193111900160000] |