n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 12 |
4 | 144 |
5 | 2000 |
6 | 32400 |
7 | 605052 |
8 | 12845056 |
9 | 306110016 |
10 | 8100000000 |
11 | 235794769100 |
12 | 7492001071104 |
13 | 258071096741328 |
14 | 9581271191425024 |
15 | 381454233398437500 |
16 | 16212958658533785600 |
17 | 732780301186512843008 |
18 | 35096024486915738763264 |
19 | 1775645341922275908244236 |
[0,1,12,144,2000,32400,605052,12845056,306110016, 8100000000,235794769100,7492001071104, 258071096741328,9581271191425024, 381454233398437500,16212958658533785600, 732780301186512843008,35096024486915738763264, 1775645341922275908244236] |