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| n | a(n) |
|---|---|
| 1 | 23 |
| 2 | 0 |
| 3 | 53 |
| 4 | 73 |
| 5 | 113 |
| 6 | 13131313133 |
| 7 | 173 |
| 8 | 193 |
| 9 | 233 |
| 10 | 293 |
| 11 | 313 |
| 12 | 373 |
| 13 | 41413 |
| 14 | 433 |
| 15 | 47474747474747474747474747473 |
| 16 | 53535353535353535353535353533 |
| 17 | 593 |
| 18 | 613 |
| 19 | 673 |
| 20 | 71713 |
| 21 | 733 |
| 22 | 0 |
| 23 | 83833 |
| 24 | 89898989893 |
| 25 | 97973 |
| 26 | 1013 |
| 27 | 1033 |
| 28 | 1071071071073 |
| 29 | 1093 |
[23,0,53,73,113,13131313133,173,193,233,293,313, 373,41413,433,47474747474747474747474747473, 53535353535353535353535353533,593,613,673,71713, 733,0,83833,89898989893,97973,1013,1033, 1071071071073,1093] |