n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 20 |
4 | 22 |
5 | 200 |
6 | 202 |
7 | 220 |
8 | 222 |
9 | 2000 |
10 | 2002 |
11 | 2020 |
12 | 2022 |
13 | 2200 |
14 | 2202 |
15 | 2220 |
16 | 2222 |
17 | 20000 |
18 | 20002 |
19 | 20020 |
20 | 20022 |
21 | 20200 |
22 | 20202 |
23 | 20220 |
24 | 20222 |
25 | 22000 |
26 | 22002 |
27 | 22020 |
28 | 22022 |
29 | 22200 |
30 | 22202 |
31 | 22220 |
32 | 22222 |
33 | 200000 |
34 | 200002 |
35 | 200020 |
36 | 200022 |
37 | 200200 |
38 | 200202 |
39 | 200220 |
40 | 200222 |
[0,2,20,22,200,202,220,222,2000,2002,2020,2022, 2200,2202,2220,2222,20000,20002,20020,20022,20200, 20202,20220,20222,22000,22002,22020,22022,22200, 22202,22220,22222,200000,200002,200020,200022, 200200,200202,200220,200222] |