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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 147 |
| 4 | 86436 |
| 5 | 5273373924 |
| 6 | 8686528282691532 |
| 7 | 4111538282327563523497152 |
| 8 | 93412216233151136505901971387334656 |
| 9 | 1219854711057286573050999646270927427863304749056 |
[1,3,147,86436,5273373924,8686528282691532, 4111538282327563523497152, 93412216233151136505901971387334656, 1219854711057286573050999646270927427863304749056] |