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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 10111 |
| 3 | 1231 |
| 4 | 67891 |
| 5 | 9101112131 |
| 6 | 3456781 |
| 7 | 91011121314151 |
| 8 | 45678910111 |
| 9 | 1234567891 |
| 10 | 303132333435363738391 |
| 11 | 12345678910111 |
| 12 | 939495969798991001011021031041 |
| 13 | 91011121314151617181920211 |
[11,10111,1231,67891,9101112131,3456781, 91011121314151,45678910111,1234567891, 303132333435363738391,12345678910111, 939495969798991001011021031041, 91011121314151617181920211] |