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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 23 |
| 3 | 307 |
| 4 | 4201 |
| 5 | 52201 |
| 6 | 600043 |
| 7 | 7200007 |
| 8 | 84000023 |
| 9 | 966000047 |
| 10 | 10801200043 |
| 11 | 110726400047 |
| 12 | 1210566000001 |
| 13 | 13200320400023 |
| 14 | 286880405400023 |
| 15 | 3081650404200307 |
| 16 | 48022810241400301 |
| 17 | 1360528840804200383 |
[2,23,307,4201,52201,600043,7200007,84000023, 966000047,10801200043,110726400047,1210566000001, 13200320400023,286880405400023,3081650404200307, 48022810241400301,1360528840804200383] |