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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 9 |
| 3 | 81450625 |
| 4 | 6080399213078595601 |
| 5 | 38604666779024731098340977806401 |
| 6 | 79600343456925208350554324952070658488321 |
| 7 | 111999530649584986702170994086297063568244097100801 |
[2,9,81450625,6080399213078595601, 38604666779024731098340977806401, 79600343456925208350554324952070658488321, 11199953064958498670217099408629706356824409710080\ 1] |