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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 9 |
| 3 | 625 |
| 4 | 274625 |
| 5 | 671898241 |
| 6 | 8458700490625 |
| 7 | 520900360822838529 |
| 8 | 151632993506657159886849 |
| 9 | 203635581444958952230203985921 |
| 10 | 1239028497632876493535705227172341761 |
[1,1,9,625,274625,671898241,8458700490625, 520900360822838529,151632993506657159886849, 203635581444958952230203985921, 1239028497632876493535705227172341761] |