n | a(n) |
---|---|
7 | 1 |
8 | 32 |
9 | 630 |
10 | 9880 |
11 | 135751 |
12 | 1712304 |
13 | 20358520 |
14 | 231917400 |
15 | 2558620845 |
16 | 27540584512 |
17 | 290752384208 |
18 | 3022285436352 |
19 | 31022118677225 |
20 | 315136287090800 |
21 | 3173734438530120 |
22 | 31731084956648880 |
23 | 315297189498738447 |
[1,32,630,9880,135751,1712304,20358520,231917400, 2558620845,27540584512,290752384208,3022285436352, 31022118677225,315136287090800,3173734438530120, 31731084956648880,315297189498738447] |