n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 12 |
4 | 48 |
5 | 480 |
6 | 1440 |
7 | 30240 |
8 | 161280 |
9 | 2177280 |
10 | 14515200 |
11 | 399168000 |
12 | 1916006400 |
13 | 74724249600 |
14 | 523069747200 |
15 | 10461394944000 |
16 | 167382319104000 |
17 | 5690998849536000 |
18 | 38414242234368000 |
19 | 2189611807358976000 |
20 | 19463216065413120000 |
21 | 613091306060513280000 |
[1,2,12,48,480,1440,30240,161280,2177280,14515200, 399168000,1916006400,74724249600,523069747200, 10461394944000,167382319104000,5690998849536000, 38414242234368000,2189611807358976000, 19463216065413120000,613091306060513280000] |