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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 915 |
| 3 | 91521 |
| 4 | 9152125 |
| 5 | 915212527 |
| 6 | 91521252733 |
| 7 | 9152125273335 |
| 8 | 915212527333539 |
| 9 | 91521252733353945 |
| 10 | 9152125273335394549 |
| 11 | 915212527333539454951 |
| 12 | 91521252733353945495155 |
| 13 | 9152125273335394549515557 |
| 14 | 915212527333539454951555763 |
| 15 | 91521252733353945495155576365 |
[9,915,91521,9152125,915212527,91521252733, 9152125273335,915212527333539,91521252733353945, 9152125273335394549,915212527333539454951, 91521252733353945495155,9152125273335394549515557, 915212527333539454951555763, 91521252733353945495155576365] |