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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 25 |
| 2 | 425 |
| 3 | 6185 |
| 4 | 83241 |
| 5 | 1072425 |
| 6 | 13462825 |
| 7 | 166325545 |
| 8 | 2034167081 |
| 9 | 24716438825 |
| 10 | 299050134825 |
| 11 | 3608230161705 |
| 12 | 43455812660521 |
| 13 | 522726247165225 |
| 14 | 6282767285808425 |
| 15 | 75473627419962665 |
| 16 | 906326894688267561 |
[1,25,425,6185,83241,1072425,13462825,166325545, 2034167081,24716438825,299050134825,3608230161705, 43455812660521,522726247165225,6282767285808425, 75473627419962665,906326894688267561] |