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| n | a(n) |
|---|---|
| 1 | 208 |
| 2 | 342 |
| 3 | 912 |
| 4 | 2014 |
| 5 | 2532 |
| 6 | 5806 |
| 7 | 13632 |
| 8 | 20576 |
| 9 | 39376 |
| 10 | 91830 |
| 11 | 156768 |
| 12 | 279744 |
| 13 | 621988 |
| 14 | 1154372 |
| 15 | 2028560 |
| 16 | 4261442 |
| 17 | 8304084 |
| 18 | 14800068 |
| 19 | 29615732 |
| 20 | 58935832 |
| 21 | 107612892 |
| 22 | 208478370 |
| 23 | 415856628 |
| 24 | 777318530 |
| 25 | 1480611488 |
| 26 | 2931957688 |
| 27 | 5578603544 |
[208,342,912,2014,2532,5806,13632,20576,39376, 91830,156768,279744,621988,1154372,2028560, 4261442,8304084,14800068,29615732,58935832, 107612892,208478370,415856628,777318530, 1480611488,2931957688,5578603544] |