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| n | a(n) |
|---|---|
| 1 | 6951 |
| 2 | 24745 |
| 3 | 100935 |
| 4 | 451801 |
| 5 | 2163831 |
| 6 | 10914505 |
| 7 | 57370215 |
| 8 | 311907001 |
| 9 | 1744391511 |
| 10 | 9994250665 |
| 11 | 58473101895 |
| 12 | 348467631001 |
| 13 | 2110957895991 |
| 14 | 12976935385225 |
| 15 | 80838681063975 |
| 16 | 509665597255801 |
| 17 | 3248622235733271 |
| 18 | 20914068068750185 |
[6951,24745,100935,451801,2163831,10914505, 57370215,311907001,1744391511,9994250665, 58473101895,348467631001,2110957895991, 12976935385225,80838681063975,509665597255801, 3248622235733271,20914068068750185] |