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| n | a(n) |
|---|---|
| 1 | 512 |
| 2 | 2444 |
| 3 | 9374 |
| 4 | 34698 |
| 5 | 113474 |
| 6 | 330684 |
| 7 | 914320 |
| 8 | 2433544 |
| 9 | 6176662 |
| 10 | 15093057 |
| 11 | 35958908 |
| 12 | 83879816 |
| 13 | 191591614 |
| 14 | 430057344 |
| 15 | 952623906 |
| 16 | 2086634822 |
| 17 | 4522903834 |
| 18 | 9718017421 |
| 19 | 20736059936 |
| 20 | 43980645588 |
| 21 | 92782630758 |
| 22 | 194864839161 |
[512,2444,9374,34698,113474,330684,914320,2433544, 6176662,15093057,35958908,83879816,191591614, 430057344,952623906,2086634822,4522903834, 9718017421,20736059936,43980645588,92782630758, 194864839161] |