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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 11 |
| 3 | 101 |
| 4 | 1231 |
| 5 | 10301 |
| 6 | 105601 |
| 7 | 1003001 |
| 8 | 10012001 |
| 9 | 100030001 |
| 10 | 1007457001 |
| 11 | 10000500001 |
| 12 | 100124521001 |
| 13 | 1000008000001 |
| 14 | 10000523500001 |
| 15 | 100000323000001 |
| 16 | 1000034344300001 |
| 17 | 10000000500000001 |
| 18 | 100000188981000001 |
| 19 | 1000000008000000001 |
| 20 | 10000001189110000001 |
| 21 | 100000000212000000001 |
[2,11,101,1231,10301,105601,1003001,10012001, 100030001,1007457001,10000500001,100124521001, 1000008000001,10000523500001,100000323000001, 1000034344300001,10000000500000001, 100000188981000001,1000000008000000001, 10000001189110000001,100000000212000000001] |