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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 77 |
| 4 | 975 |
| 5 | 9457 |
| 6 | 83959 |
| 7 | 700406 |
| 8 | 6220793 |
| 9 | 60225898 |
| 10 | 600223995 |
| 11 | 6000225272 |
[1,5,77,975,9457,83959,700406,6220793,60225898, 600223995,6000225272] |