n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 33 |
4 | 280 |
5 | 3245 |
6 | 47376 |
7 | 828583 |
8 | 16817536 |
9 | 387783369 |
10 | 10003628800 |
11 | 285351587411 |
12 | 8916579449856 |
13 | 302881333613053 |
14 | 11112094003849216 |
15 | 437895198055227375 |
16 | 18446764996499439616 |
17 | 827240617573764860177 |
18 | 39346414477670243303424 |
[2,6,33,280,3245,47376,828583,16817536,387783369, 10003628800,285351587411,8916579449856, 302881333613053,11112094003849216, 437895198055227375,18446764996499439616, 827240617573764860177,39346414477670243303424] |