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| n | a(n) |
|---|---|
| 1 | 2688 |
| 2 | 19904 |
| 3 | 147428 |
| 4 | 1075071 |
| 5 | 6019798 |
| 6 | 33731024 |
| 7 | 188814612 |
| 8 | 897952936 |
| 9 | 4272342678 |
| 10 | 20338694068 |
| 11 | 87016169948 |
| 12 | 372379475914 |
| 13 | 1594343736734 |
| 14 | 6342958109897 |
| 15 | 25240403647650 |
| 16 | 100475230637492 |
| 17 | 379502308464848 |
[2688,19904,147428,1075071,6019798,33731024, 188814612,897952936,4272342678,20338694068, 87016169948,372379475914,1594343736734, 6342958109897,25240403647650,100475230637492, 379502308464848] |