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| n | a(n) |
|---|---|
| 0 | 7776 |
| 1 | 371293 |
| 2 | 3200000 |
| 3 | 14348907 |
| 4 | 45435424 |
| 5 | 115856201 |
| 6 | 254803968 |
| 7 | 503284375 |
| 8 | 916132832 |
| 9 | 1564031349 |
| 10 | 2535525376 |
| 11 | 3939040643 |
| 12 | 5904900000 |
| 13 | 8587340257 |
| 14 | 12166529024 |
| 15 | 16850581551 |
| 16 | 22877577568 |
| 17 | 30517578125 |
[7776,371293,3200000,14348907,45435424,115856201, 254803968,503284375,916132832,1564031349, 2535525376,3939040643,5904900000,8587340257, 12166529024,16850581551,22877577568,30517578125] |