n | a(n) |
---|---|
1 | 2 |
2 | 9 |
3 | 64 |
4 | 620 |
5 | 7680 |
6 | 115920 |
7 | 2063880 |
8 | 42342912 |
9 | 983566800 |
10 | 25515160000 |
11 | 731128554024 |
12 | 22934195241984 |
13 | 781644611944014 |
14 | 28761550510694400 |
15 | 1136386416816000000 |
16 | 47984229920230342656 |
17 | 2156419762355192954760 |
[2,9,64,620,7680,115920,2063880,42342912, 983566800,25515160000,731128554024,22934195241984, 781644611944014,28761550510694400, 1136386416816000000,47984229920230342656, 2156419762355192954760] |