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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 12 |
| 5 | 24 |
| 6 | 47 |
| 7 | 92 |
| 8 | 183 |
| 9 | 364 |
| 10 | 728 |
| 11 | 1465 |
| 12 | 2922 |
| 13 | 5834 |
| 14 | 11661 |
[1,3,6,12,24,47,92,183,364,728,1465,2922,5834, 11661] |