| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 256 |
| 3 | 2500 |
| 4 | 21904 |
| 5 | 204304 |
| 6 | 1971216 |
| 7 | 18939904 |
| 8 | 180741136 |
| 9 | 1723910400 |
| 10 | 16461916416 |
| 11 | 157253488704 |
| 12 | 1501977704704 |
| 13 | 14344641154624 |
| 14 | 136999721177344 |
| 15 | 1308451781910784 |
| 16 | 12496746537167104 |
| 17 | 119353489692353536 |
[16,256,2500,21904,204304,1971216,18939904, 180741136,1723910400,16461916416,157253488704, 1501977704704,14344641154624,136999721177344, 1308451781910784,12496746537167104, 119353489692353536] |