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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 43 |
| 3 | 67 |
| 4 | 133 |
| 5 | 244 |
| 6 | 519 |
| 7 | 1072 |
| 8 | 2225 |
| 9 | 4456 |
| 10 | 9098 |
| 11 | 19066 |
| 12 | 39689 |
| 13 | 82372 |
| 14 | 171498 |
| 15 | 358146 |
| 16 | 748911 |
| 17 | 1567225 |
| 18 | 3279792 |
| 19 | 6866722 |
| 20 | 14390098 |
| 21 | 30170057 |
| 22 | 63261378 |
| 23 | 132676528 |
| 24 | 278340227 |
| 25 | 584041659 |
| 26 | 1225661652 |
| 27 | 2572438981 |
| 28 | 5399619168 |
| 29 | 11334969352 |
[9,43,67,133,244,519,1072,2225,4456,9098,19066, 39689,82372,171498,358146,748911,1567225,3279792, 6866722,14390098,30170057,63261378,132676528, 278340227,584041659,1225661652,2572438981, 5399619168,11334969352] |