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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 39 |
| 3 | 472 |
| 4 | 7100 |
| 5 | 106134 |
| 6 | 1682457 |
| 7 | 27337776 |
| 8 | 454364514 |
| 9 | 7678775057 |
| 10 | 131559174015 |
| 11 | 2279099028427 |
[5,39,472,7100,106134,1682457,27337776,454364514, 7678775057,131559174015,2279099028427] |