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| n | a(n) |
|---|---|
| 1 | 144 |
| 2 | 3309 |
| 3 | 678660 |
| 4 | 124132900 |
| 5 | 24188209253 |
| 6 | 4666623161419 |
| 7 | 899426070636904 |
| 8 | 173546274977761257 |
| 9 | 33474310504831841795 |
| 10 | 6456965889651937136227 |
| 11 | 1245519756272860837583554 |
| 12 | 240252847617486843960049416 |
[144,3309,678660,124132900,24188209253, 4666623161419,899426070636904,173546274977761257, 33474310504831841795,6456965889651937136227, 1245519756272860837583554, 240252847617486843960049416] |