n | a(n) |
---|---|
1 | 3 |
2 | 3 |
3 | 12 |
4 | 12 |
5 | 60 |
6 | 540 |
7 | 1080 |
8 | 6480 |
9 | 32400 |
10 | 97200 |
11 | 486000 |
12 | 3888000 |
13 | 34992000 |
14 | 244944000 |
15 | 2204496000 |
16 | 6613488000 |
17 | 13226976000 |
18 | 39680928000 |
19 | 317447424000 |
20 | 1269789696000 |
21 | 7618738176000 |
22 | 15237476352000 |
23 | 91424858112000 |
[3,3,12,12,60,540,1080,6480,32400,97200,486000, 3888000,34992000,244944000,2204496000,6613488000, 13226976000,39680928000,317447424000, 1269789696000,7618738176000,15237476352000, 91424858112000] |