| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 243 |
| 4 | 215233605 |
| 5 | 2849452841966467687734375 |
| 6 | 34139907905802495953388390516678108673704867996275424957275390625 |
[1,3,243,215233605,2849452841966467687734375, 34139907905802495953388390516678108673704867996275\ 424957275390625] |