n | a(n) |
---|---|
1 | 19999999 |
2 | 29999899 |
3 | 29999989 |
4 | 39979999 |
5 | 39999979 |
6 | 47999899 |
7 | 48899899 |
8 | 48989989 |
9 | 48997999 |
10 | 48999799 |
11 | 48999889 |
12 | 49989799 |
13 | 49999699 |
14 | 49999897 |
15 | 56999989 |
16 | 58799899 |
17 | 58898989 |
18 | 58988899 |
19 | 58997899 |
20 | 59698999 |
21 | 59788999 |
[19999999,29999899,29999989,39979999,39999979, 47999899,48899899,48989989,48997999,48999799, 48999889,49989799,49999699,49999897,56999989, 58799899,58898989,58988899,58997899,59698999, 59788999] |