| n | a(n) |
|---|---|
| 1 | 12 |
| 2 | 156 |
| 3 | 2050 |
| 4 | 26635 |
| 5 | 346501 |
| 6 | 4507281 |
| 7 | 58634265 |
| 8 | 762745363 |
| 9 | 9922198586 |
| 10 | 129073371922 |
| 11 | 1679056577224 |
| 12 | 21842080049186 |
| 13 | 284133645307551 |
| 14 | 3696164842194424 |
| 15 | 48081720559244098 |
| 16 | 625473146037672596 |
[12,156,2050,26635,346501,4507281,58634265, 762745363,9922198586,129073371922,1679056577224, 21842080049186,284133645307551,3696164842194424, 48081720559244098,625473146037672596] |