| n | a(n) |
|---|---|
| 0 | 216 |
| 1 | 1679616 |
| 2 | 13060694016 |
| 3 | 101559956668416 |
| 4 | 789730223053602816 |
| 5 | 6140942214464815497216 |
| 6 | 47751966659678405306351616 |
| 7 | 371319292745659279662190166016 |
| 8 | 2887378820390246558653190730940416 |
| 9 | 22452257707354557240087211123792674816 |
[216,1679616,13060694016,101559956668416, 789730223053602816,6140942214464815497216, 47751966659678405306351616, 371319292745659279662190166016, 2887378820390246558653190730940416, 22452257707354557240087211123792674816] |