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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 20 |
| 3 | 0 |
| 4 | 102 |
| 5 | 111 |
| 6 | 120 |
| 7 | 1012 |
| 8 | 1120 |
| 9 | 1300 |
| 10 | 2020 |
| 11 | 10040 |
| 12 | 10130 |
| 13 | 10220 |
| 14 | 10310 |
| 15 | 10400 |
| 16 | 100014 |
| 17 | 100032 |
| 18 | 100050 |
| 19 | 100104 |
| 20 | 100122 |
| 21 | 100140 |
| 22 | 1000006 |
| 23 | 1000132 |
| 24 | 1000321 |
| 25 | 1000510 |
| 26 | 1001014 |
| 27 | 1001140 |
| 28 | 1001203 |
| 29 | 10000016 |
| 30 | 10000160 |
| 31 | 10000232 |
| 32 | 10000304 |
[1,20,0,102,111,120,1012,1120,1300,2020,10040, 10130,10220,10310,10400,100014,100032,100050, 100104,100122,100140,1000006,1000132,1000321, 1000510,1001014,1001140,1001203,10000016,10000160, 10000232,10000304] |