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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 31 |
| 3 | 890 |
| 4 | 2234 |
| 5 | 14131 |
| 6 | 30331 |
| 7 | 173031 |
| 8 | 969520 |
| 9 | 9958890 |
| 10 | 31617890 |
| 11 | 360542549 |
| 12 | 547631234 |
| 13 | 3316547890 |
| 14 | 17318486343 |
| 15 | 114017542334 |
| 16 | 356363452109 |
| 17 | 3065925634968 |
| 18 | 9995498986343 |
| 19 | 44045425415132 |
| 20 | 173193446755643 |
| 21 | 1414213562370264 |
| 22 | 4471015432706534 |
| 23 | 31575306806579083 |
| 24 | 171463720944111031 |
| 25 | 141138230008594765 |
[9,31,890,2234,14131,30331,173031,969520,9958890, 31617890,360542549,547631234,3316547890, 17318486343,114017542334,356363452109, 3065925634968,9995498986343,44045425415132, 173193446755643,1414213562370264,4471015432706534, 31575306806579083,171463720944111031, 141138230008594765] |