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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 341 |
| 3 | 18117 |
| 4 | 604133 |
| 5 | 17145989 |
| 6 | 450287974 |
| 7 | 13094741315 |
| 8 | 395698652441 |
| 9 | 11688008077057 |
| 10 | 337938770928273 |
| 11 | 9800299647018934 |
| 12 | 286640525559424646 |
| 13 | 8393401125409013965 |
| 14 | 245088532914340963777 |
| 15 | 7148359187516040367173 |
[81,341,18117,604133,17145989,450287974, 13094741315,395698652441,11688008077057, 337938770928273,9800299647018934, 286640525559424646,8393401125409013965, 245088532914340963777,7148359187516040367173] |