n | a(n) |
---|---|
1 | 21 |
2 | 31 |
3 | 99 |
4 | 201 |
5 | 301 |
6 | 211 |
7 | 311 |
8 | 221 |
9 | 2001 |
10 | 3001 |
11 | 1101 |
12 | 2101 |
13 | 3101 |
14 | 1201 |
15 | 2201 |
16 | 1301 |
17 | 2011 |
18 | 3011 |
19 | 2111 |
20 | 3111 |
21 | 1211 |
22 | 2211 |
23 | 2021 |
24 | 2121 |
25 | 2102 |
26 | 2202 |
27 | 6501 |
28 | 20001 |
29 | 30001 |
30 | 11001 |
31 | 21001 |
32 | 31001 |
33 | 12001 |
34 | 22001 |
35 | 13001 |
36 | 20101 |
37 | 30101 |
38 | 11101 |
39 | 21101 |
40 | 31101 |
[21,31,99,201,301,211,311,221,2001,3001,1101,2101, 3101,1201,2201,1301,2011,3011,2111,3111,1211,2211, 2021,2121,2102,2202,6501,20001,30001,11001,21001, 31001,12001,22001,13001,20101,30101,11101,21101, 31101] |