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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 147 |
| 4 | 7071 |
| 5 | 1012315 |
| 6 | 437241277 |
| 7 | 563330031268 |
| 8 | 2154370064869978 |
| 9 | 24591601562099287015 |
| 10 | 837044464889796587986014 |
| 11 | 84914857903369744218835564258 |
[1,10,147,7071,1012315,437241277,563330031268, 2154370064869978,24591601562099287015, 837044464889796587986014, 84914857903369744218835564258] |