n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 10 |
4 | 40 |
5 | 192 |
6 | 1092 |
7 | 7248 |
8 | 55296 |
9 | 478080 |
10 | 4625280 |
11 | 49524480 |
12 | 581368320 |
13 | 7422589440 |
14 | 102372076800 |
15 | 1516402944000 |
16 | 24004657152000 |
17 | 404347023360000 |
18 | 7220327288832000 |
19 | 136227009945600000 |
20 | 2707657158721536000 |
21 | 56546150835879936000 |
22 | 1237826569587277824000 |
[1,3,10,40,192,1092,7248,55296,478080,4625280, 49524480,581368320,7422589440,102372076800, 1516402944000,24004657152000,404347023360000, 7220327288832000,136227009945600000, 2707657158721536000,56546150835879936000, 1237826569587277824000] |