n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 9 |
4 | 80 |
5 | 900 |
6 | 12348 |
7 | 200704 |
8 | 3779136 |
9 | 81000000 |
10 | 1948717100 |
11 | 52027785216 |
12 | 1527047909712 |
13 | 48884036690944 |
14 | 1695352148437500 |
15 | 63331869759897600 |
16 | 2535571976423919872 |
17 | 108321063231221415936 |
18 | 4918685157679434648876 |
[0,0,9,80,900,12348,200704,3779136,81000000, 1948717100,52027785216,1527047909712, 48884036690944,1695352148437500,63331869759897600, 2535571976423919872,108321063231221415936, 4918685157679434648876] |