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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 70 |
| 3 | 34650 |
| 4 | 59789280 |
| 5 | 266337847482 |
| 6 | 2554877633330088 |
| 7 | 46673357620120575102 |
| 8 | 1485635287258589886509256 |
[1,70,34650,59789280,266337847482, 2554877633330088,46673357620120575102, 1485635287258589886509256] |