The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 9901 |
| 2 | 99990001 |
| 3 | 999999000001 |
| 4 | 9999999900000001 |
| 5 | 811451682377384625400019885321 |
| 6 | 666809750614092756440997454321145572124297 |
[9901,99990001,999999000001,9999999900000001, 811451682377384625400019885321, 666809750614092756440997454321145572124297] |