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| n | a(n) |
|---|---|
| 0 | 512 |
| 1 | 16777216 |
| 2 | 549755813888 |
| 3 | 18014398509481984 |
| 4 | 590295810358705651712 |
| 5 | 19342813113834066795298816 |
| 6 | 633825300114114700748351602688 |
| 7 | 20769187434139310514121985316880384 |
| 8 | 680564733841876926926749214863536422912 |
[512,16777216,549755813888,18014398509481984, 590295810358705651712,19342813113834066795298816, 633825300114114700748351602688, 20769187434139310514121985316880384, 680564733841876926926749214863536422912] |