n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 32 |
4 | 262 |
5 | 2644 |
6 | 31848 |
7 | 446592 |
8 | 7150512 |
9 | 128749536 |
10 | 2575353600 |
11 | 56661408000 |
12 | 1359913708800 |
13 | 35358235430400 |
14 | 990036819072000 |
15 | 29701191750451200 |
16 | 950439443688806400 |
17 | 32314962008209305600 |
18 | 1163338987982963097600 |
19 | 44206887945726303436800 |
20 | 1768275639474152546304000 |
[1,5,32,262,2644,31848,446592,7150512,128749536, 2575353600,56661408000,1359913708800, 35358235430400,990036819072000,29701191750451200, 950439443688806400,32314962008209305600, 1163338987982963097600,44206887945726303436800, 1768275639474152546304000] |