n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 18 |
3 | 288 |
4 | 6624 |
5 | 198720 |
6 | 7352640 |
7 | 323516160 |
8 | 16499324160 |
9 | 956960801280 |
10 | 62202452083200 |
11 | 4478576549990400 |
12 | 353807547449241600 |
13 | 30427449080634777600 |
14 | 2829752764499034316800 |
15 | 282975276449903431680000 |
16 | 30278354580139667189760000 |
17 | 3451732422135922059632640000 |
[1,2,18,288,6624,198720,7352640,323516160, 16499324160,956960801280,62202452083200, 4478576549990400,353807547449241600, 30427449080634777600,2829752764499034316800, 282975276449903431680000, 30278354580139667189760000, 3451732422135922059632640000] |