n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 34 |
3 | 258 |
4 | 2136 |
5 | 19320 |
6 | 190800 |
7 | 2051280 |
8 | 23909760 |
9 | 300827520 |
10 | 4067884800 |
11 | 58877280000 |
12 | 908666035200 |
13 | 14901260774400 |
14 | 258832346572800 |
15 | 4748165630208000 |
16 | 91746433658880000 |
17 | 1862735060938752000 |
18 | 39649900359573504000 |
19 | 883021783867711488000 |
[1,5,34,258,2136,19320,190800,2051280,23909760, 300827520,4067884800,58877280000,908666035200, 14901260774400,258832346572800,4748165630208000, 91746433658880000,1862735060938752000, 39649900359573504000,883021783867711488000] |