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| n | a(n) |
|---|---|
| 1 | 124 |
| 2 | 3147 |
| 3 | 127788 |
| 4 | 6552283 |
| 5 | 349972980 |
| 6 | 17452506031 |
| 7 | 738302560541 |
| 8 | 25786803621594 |
| 9 | 728236411637198 |
[124,3147,127788,6552283,349972980,17452506031, 738302560541,25786803621594,728236411637198] |