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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 16 |
| 5 | 30 |
| 6 | 56 |
| 7 | 106 |
| 8 | 202 |
| 9 | 387 |
| 10 | 746 |
| 11 | 1445 |
| 12 | 2805 |
| 13 | 5448 |
| 14 | 10582 |
| 15 | 20552 |
| 16 | 39914 |
| 17 | 77533 |
| 18 | 150681 |
| 19 | 293042 |
| 20 | 570359 |
| 21 | 1111037 |
| 22 | 2166018 |
| 23 | 4225981 |
| 24 | 8250877 |
| 25 | 16119723 |
| 26 | 31512501 |
| 27 | 61640214 |
| 28 | 120640598 |
| 29 | 236246498 |
| 30 | 462887248 |
| 31 | 907440762 |
| 32 | 1779874092 |
| 33 | 3492868381 |
[1,2,4,8,16,30,56,106,202,387,746,1445,2805,5448, 10582,20552,39914,77533,150681,293042,570359, 1111037,2166018,4225981,8250877,16119723,31512501, 61640214,120640598,236246498,462887248,907440762, 1779874092,3492868381] |