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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 36 |
| 3 | 216 |
| 4 | 776 |
| 5 | 3876 |
| 6 | 18576 |
| 7 | 83376 |
| 8 | 399376 |
| 9 | 2034126 |
| 10 | 9884376 |
| 11 | 49034376 |
| 12 | 245689376 |
| 13 | 1221921876 |
| 14 | 6107609376 |
| 15 | 30563759376 |
| 16 | 152599609376 |
| 17 | 762979296876 |
| 18 | 3815571921876 |
| 19 | 19073708984376 |
| 20 | 95369005859376 |
| 21 | 476858422109376 |
| 22 | 2384189755859376 |
| 23 | 11920935693359376 |
| 24 | 59605116212109376 |
| 25 | 298023413134765626 |
[6,36,216,776,3876,18576,83376,399376,2034126, 9884376,49034376,245689376,1221921876,6107609376, 30563759376,152599609376,762979296876, 3815571921876,19073708984376,95369005859376, 476858422109376,2384189755859376, 11920935693359376,59605116212109376, 298023413134765626] |