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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 2609 |
| 3 | 84381 |
| 4 | 2731088 |
| 5 | 88392872 |
| 6 | 2860882075 |
| 7 | 92593947153 |
| 8 | 2996851648908 |
| 9 | 96994674850240 |
| 10 | 3139283505544719 |
| 11 | 101604556573346177 |
| 12 | 3288484744444601296 |
| 13 | 106433532896116499960 |
| 14 | 3444777094948014560211 |
| 15 | 111492016763745516373473 |
[81,2609,84381,2731088,88392872,2860882075, 92593947153,2996851648908,96994674850240, 3139283505544719,101604556573346177, 3288484744444601296,106433532896116499960, 3444777094948014560211,111492016763745516373473] |