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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 7 |
| 2 | 177 |
| 3 | 10519 |
| 4 | 1108833 |
| 5 | 180134183 |
| 6 | 41643888145 |
| 7 | 12982974409271 |
| 8 | 5247381641852609 |
| 9 | 2667871676330509895 |
| 10 | 1666128949779524612977 |
| 11 | 1253728661849677130856279 |
| 12 | 1118729647152655182634160673 |
[1,7,177,10519,1108833,180134183,41643888145, 12982974409271,5247381641852609, 2667871676330509895,1666128949779524612977, 1253728661849677130856279, 1118729647152655182634160673] |