n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 90 |
3 | 990 |
4 | 11880 |
5 | 154440 |
6 | 2162160 |
7 | 32432400 |
8 | 518918400 |
9 | 8821612800 |
10 | 158789030400 |
11 | 3016991577600 |
12 | 60339831552000 |
13 | 1267136462592000 |
14 | 27877002177024000 |
15 | 641171050071552000 |
16 | 15388105201717248000 |
17 | 384702630042931200000 |
18 | 10002268381116211200000 |
[1,9,90,990,11880,154440,2162160,32432400, 518918400,8821612800,158789030400,3016991577600, 60339831552000,1267136462592000,27877002177024000, 641171050071552000,15388105201717248000, 384702630042931200000,10002268381116211200000] |