n | a(n) |
---|---|
1 | 4 |
2 | 6 |
3 | 9 |
4 | 38 |
5 | 39 |
6 | 49 |
7 | 69 |
8 | 169 |
9 | 278 |
10 | 289 |
11 | 299 |
12 | 489 |
13 | 589 |
14 | 689 |
15 | 699 |
16 | 799 |
17 | 899 |
18 | 2899 |
19 | 3899 |
20 | 4989 |
21 | 5899 |
22 | 5999 |
23 | 6999 |
24 | 7999 |
25 | 9899 |
26 | 19999 |
27 | 29999 |
28 | 48999 |
29 | 58999 |
30 | 68999 |
31 | 69999 |
32 | 88999 |
33 | 99899 |
34 | 299899 |
35 | 398999 |
36 | 589989 |
37 | 589999 |
38 | 689999 |
39 | 798999 |
40 | 889999 |
41 | 899999 |
42 | 2899999 |
43 | 3899999 |
[4,6,9,38,39,49,69,169,278,289,299,489,589,689, 699,799,899,2899,3899,4989,5899,5999,6999,7999, 9899,19999,29999,48999,58999,68999,69999,88999, 99899,299899,398999,589989,589999,689999,798999, 889999,899999,2899999,3899999] |