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| n | a(n) |
|---|---|
| 1 | 262144 |
| 2 | 4096000 |
| 3 | 4096000 |
| 4 | 64000000 |
| 5 | 128000000 |
| 6 | 64000000 |
| 7 | 1000000000 |
| 8 | 4000000000 |
| 9 | 4000000000 |
| 10 | 1000000000 |
| 11 | 8000000000 |
| 12 | 125000000000 |
| 13 | 250000000000 |
| 14 | 125000000000 |
| 15 | 8000000000 |
| 16 | 64000000000 |
| 17 | 1750000000000 |
| 18 | 15625000000000 |
[262144,4096000,4096000,64000000,128000000, 64000000,1000000000,4000000000,4000000000, 1000000000,8000000000,125000000000,250000000000, 125000000000,8000000000,64000000000,1750000000000, 15625000000000] |