n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 20 |
3 | 21 |
4 | 310 |
5 | 311 |
6 | 4200 |
7 | 4201 |
8 | 4220 |
9 | 4221 |
10 | 53110 |
11 | 53111 |
12 | 642000 |
13 | 642001 |
14 | 642020 |
15 | 642021 |
16 | 642310 |
17 | 642311 |
18 | 7531200 |
19 | 7531201 |
20 | 7531220 |
21 | 7531221 |
22 | 86420110 |
23 | 86420111 |
24 | 86424000 |
25 | 86424001 |
26 | 86424020 |
27 | 86424021 |
28 | 86424310 |
29 | 86424311 |
[0,1,20,21,310,311,4200,4201,4220,4221,53110, 53111,642000,642001,642020,642021,642310,642311, 7531200,7531201,7531220,7531221,86420110,86420111, 86424000,86424001,86424020,86424021,86424310, 86424311] |