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| n | a(n) |
|---|---|
| 1 | 512 |
| 2 | 39852 |
| 3 | 9583440 |
| 4 | 6967413024 |
| 5 | 15037777879872 |
| 6 | 99734163008521518 |
| 7 | 2034240174378849957658 |
| 8 | 127927996167974091553962336 |
[512,39852,9583440,6967413024,15037777879872, 99734163008521518,2034240174378849957658, 127927996167974091553962336] |