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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 23 |
| 3 | 30 |
| 4 | 31 |
| 5 | 32 |
| 6 | 33 |
| 7 | 103 |
| 8 | 203 |
| 9 | 213 |
| 10 | 301 |
| 11 | 302 |
| 12 | 303 |
| 13 | 312 |
| 14 | 313 |
| 15 | 323 |
| 16 | 1003 |
| 17 | 1013 |
| 18 | 1023 |
| 19 | 1031 |
| 20 | 1032 |
| 21 | 1033 |
| 22 | 1103 |
| 23 | 1203 |
| 24 | 1301 |
| 25 | 1302 |
| 26 | 1303 |
| 27 | 2003 |
| 28 | 2013 |
| 29 | 2023 |
| 30 | 2031 |
| 31 | 2032 |
| 32 | 2033 |
| 33 | 2103 |
| 34 | 2113 |
| 35 | 2123 |
| 36 | 2132 |
| 37 | 2133 |
| 38 | 2203 |
| 39 | 2213 |
| 40 | 2301 |
| 41 | 2302 |
| 42 | 2303 |
| 43 | 2312 |
| 44 | 2313 |
| 45 | 3001 |
| 46 | 3002 |
[13,23,30,31,32,33,103,203,213,301,302,303,312, 313,323,1003,1013,1023,1031,1032,1033,1103,1203, 1301,1302,1303,2003,2013,2023,2031,2032,2033,2103, 2113,2123,2132,2133,2203,2213,2301,2302,2303,2312, 2313,3001,3002] |