n | a(n) |
---|---|
9 | 1 |
10 | 9 |
11 | 90 |
12 | 825 |
13 | 7920 |
14 | 78507 |
15 | 813813 |
16 | 8828820 |
17 | 100321650 |
18 | 1193450830 |
19 | 14850852588 |
20 | 193081474872 |
21 | 2619543882540 |
22 | 37037407198050 |
23 | 545028468623100 |
24 | 8336937634715580 |
25 | 132393075623791785 |
26 | 2180112627147691500 |
27 | 37183793747600839625 |
28 | 656173638174834222300 |
[1,9,90,825,7920,78507,813813,8828820,100321650, 1193450830,14850852588,193081474872,2619543882540, 37037407198050,545028468623100,8336937634715580, 132393075623791785,2180112627147691500, 37183793747600839625,656173638174834222300] |