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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 1668 |
| 3 | 60002 |
| 4 | 3207808 |
| 5 | 501667350 |
| 6 | 184415543478 |
| 7 | 177367882314550 |
| 8 | 366119804483636046 |
| 9 | 1978497544874844832642 |
| 10 | 25098928376580088624364564 |
| 11 | 821453000361180626304440936512 |
[81,1668,60002,3207808,501667350,184415543478, 177367882314550,366119804483636046, 1978497544874844832642,25098928376580088624364564, 821453000361180626304440936512] |