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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 121 |
| 3 | 12421 |
| 4 | 1246421 |
| 5 | 124696421 |
| 6 | 12470296421 |
| 7 | 1247037296421 |
| 8 | 124703817296421 |
| 9 | 12470382717296421 |
| 10 | 1247038282717296421 |
| 11 | 124703828392717296421 |
| 12 | 12470382840592717296421 |
| 13 | 1247038284073592717296421 |
| 14 | 124703828407513592717296421 |
| 15 | 12470382840753013592717296421 |
[1,121,12421,1246421,124696421,12470296421, 1247037296421,124703817296421,12470382717296421, 1247038282717296421,124703828392717296421, 12470382840592717296421,1247038284073592717296421, 124703828407513592717296421, 12470382840753013592717296421] |