n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 24 |
4 | 147 |
5 | 864 |
6 | 5043 |
7 | 29400 |
8 | 171363 |
9 | 998784 |
10 | 5821347 |
11 | 33929304 |
12 | 197754483 |
13 | 1152597600 |
14 | 6717831123 |
15 | 39154389144 |
16 | 228208503747 |
17 | 1330096633344 |
18 | 7752371296323 |
19 | 45184131144600 |
20 | 263352415571283 |
21 | 1534930362283104 |
[1,3,24,147,864,5043,29400,171363,998784,5821347, 33929304,197754483,1152597600,6717831123, 39154389144,228208503747,1330096633344, 7752371296323,45184131144600,263352415571283, 1534930362283104] |