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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 81 |
| 4 | 2048 |
| 5 | 15625 |
| 6 | 6718464 |
| 7 | 5764801 |
| 8 | 2147483648 |
| 9 | 31381059609 |
| 10 | 64000000000000 |
| 11 | 3138428376721 |
| 12 | 2218611106740436992 |
| 13 | 3937376385699289 |
| 14 | 1115112108958398021632 |
| 15 | 39903080760955810546875 |
| 16 | 604462909807314587353088 |
| 17 | 14063084452067724991009 |
| 18 | 16918235275724100929608539439104 |
[1,8,81,2048,15625,6718464,5764801,2147483648, 31381059609,64000000000000,3138428376721, 2218611106740436992,3937376385699289, 1115112108958398021632,39903080760955810546875, 604462909807314587353088,14063084452067724991009, 16918235275724100929608539439104] |