n | a(n) |
---|---|
0 | 2 |
1 | 480 |
2 | 10321920 |
3 | 64561751654400 |
4 | 1480206036768915456000 |
5 | 8898131405512141870083342336000 |
6 | 10827543712227210782977570287648768000000 |
[2,480,10321920,64561751654400, 1480206036768915456000, 8898131405512141870083342336000, 10827543712227210782977570287648768000000] |