| n | a(n) |
|---|---|
| 1 | 60 |
| 2 | 612 |
| 3 | 6696 |
| 4 | 74736 |
| 5 | 840456 |
| 6 | 9474840 |
| 7 | 106904016 |
| 8 | 1206530100 |
| 9 | 13618313028 |
| 10 | 153717108696 |
| 11 | 1735104803220 |
| 12 | 19585324103616 |
| 13 | 221073319268820 |
| 14 | 2495410941230244 |
| 15 | 28167472321321608 |
| 16 | 317946242671782120 |
[60,612,6696,74736,840456,9474840,106904016, 1206530100,13618313028,153717108696,1735104803220, 19585324103616,221073319268820,2495410941230244, 28167472321321608,317946242671782120] |