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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 7 |
| 3 | 124 |
| 4 | 9304 |
| 5 | 1712347 |
| 6 | 898146670 |
| 7 | 1305482386171 |
| 8 | 5296781617645719 |
| 9 | 59891404546831242351 |
[0,7,124,9304,1712347,898146670,1305482386171, 5296781617645719,59891404546831242351] |