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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 10 |
| 4 | 21 |
| 5 | 43 |
| 6 | 87 |
| 7 | 175 |
| 8 | 351 |
| 9 | 703 |
| 10 | 1407 |
| 11 | 2815 |
| 12 | 5631 |
| 13 | 11263 |
| 14 | 22527 |
| 15 | 45055 |
| 16 | 90111 |
| 17 | 180223 |
| 18 | 360447 |
| 19 | 720895 |
| 20 | 1441791 |
| 21 | 2883583 |
| 22 | 5767167 |
| 23 | 11534335 |
| 24 | 23068671 |
| 25 | 46137343 |
| 26 | 92274687 |
| 27 | 184549375 |
| 28 | 369098751 |
| 29 | 738197503 |
| 30 | 1476395007 |
| 31 | 2952790015 |
| 32 | 5905580031 |
| 33 | 11811160063 |
[1,2,5,10,21,43,87,175,351,703,1407,2815,5631, 11263,22527,45055,90111,180223,360447,720895, 1441791,2883583,5767167,11534335,23068671, 46137343,92274687,184549375,369098751,738197503, 1476395007,2952790015,5905580031,11811160063] |