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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 51 |
| 4 | 63 |
| 5 | 119 |
| 6 | 3717 |
| 7 | 91153 |
| 8 | 147037 |
| 9 | 208747 |
| 10 | 2707075 |
| 11 | 3097013 |
[1,7,51,63,119,3717,91153,147037,208747,2707075, 3097013] |