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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 11 |
| 4 | 22 |
| 5 | 43 |
| 6 | 83 |
| 7 | 159 |
| 8 | 307 |
| 9 | 592 |
| 10 | 1141 |
| 11 | 2199 |
| 12 | 4239 |
| 13 | 8171 |
| 14 | 15750 |
| 15 | 30359 |
| 16 | 58519 |
| 17 | 112799 |
| 18 | 217427 |
| 19 | 419104 |
| 20 | 807849 |
| 21 | 1557179 |
| 22 | 3001559 |
| 23 | 5785691 |
| 24 | 11152278 |
| 25 | 21496707 |
| 26 | 41436235 |
| 27 | 79870911 |
| 28 | 153956131 |
| 29 | 296759984 |
| 30 | 572023261 |
| 31 | 1102610287 |
| 32 | 2125349663 |
| 33 | 4096743195 |
[1,3,7,11,22,43,83,159,307,592,1141,2199,4239, 8171,15750,30359,58519,112799,217427,419104, 807849,1557179,3001559,5785691,11152278,21496707, 41436235,79870911,153956131,296759984,572023261, 1102610287,2125349663,4096743195] |