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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 25 |
| 2 | 407 |
| 3 | 5489 |
| 4 | 66759 |
| 5 | 762321 |
| 6 | 8356279 |
| 7 | 89114113 |
| 8 | 932519687 |
| 9 | 9629963057 |
| 10 | 98523692631 |
| 11 | 1001349555297 |
| 12 | 10129549127335 |
| 13 | 102127457330833 |
| 14 | 1027215881948663 |
| 15 | 10314453257429441 |
| 16 | 103444825304722503 |
[1,25,407,5489,66759,762321,8356279,89114113, 932519687,9629963057,98523692631,1001349555297, 10129549127335,102127457330833,1027215881948663, 10314453257429441,103444825304722503] |