n | a(n) |
---|---|
1 | 20 |
2 | -1 |
3 | 90 |
4 | 9 |
5 | -1 |
6 | 1090 |
7 | 120 |
8 | 3020 |
9 | 19 |
10 | 29 |
11 | 220 |
12 | 39 |
13 | 49 |
14 | 59 |
15 | 119 |
16 | 129 |
17 | 409 |
18 | 139 |
19 | 149 |
20 | 159 |
21 | 329 |
22 | 239 |
23 | 249 |
24 | 259 |
25 | 359 |
26 | 449 |
27 | 459 |
28 | 1359 |
29 | 1449 |
30 | 1459 |
31 | 2359 |
32 | 2449 |
33 | 2459 |
34 | 3459 |
35 | 4449 |
36 | 4459 |
[20,-1,90,9,-1,1090,120,3020,19,29,220,39,49,59, 119,129,409,139,149,159,329,239,249,259,359,449, 459,1359,1449,1459,2359,2449,2459,3459,4449,4459] |