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| n | a(n) |
|---|---|
| 1 | 4096000 |
| 2 | 128000000 |
| 3 | 4000000000 |
| 4 | 125000000000 |
| 5 | 1750000000000 |
| 6 | 24500000000000 |
| 7 | 343000000000000 |
| 8 | 2941225000000000 |
| 9 | 25221004375000000 |
| 10 | 216270112515625000 |
| 11 | 1328763571296000000 |
| 12 | 8163923382042624000 |
| 13 | 50159145259269881856 |
[4096000,128000000,4000000000,125000000000, 1750000000000,24500000000000,343000000000000, 2941225000000000,25221004375000000, 216270112515625000,1328763571296000000, 8163923382042624000,50159145259269881856] |