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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 13 |
| 4 | 25 |
| 5 | 51 |
| 6 | 103 |
| 7 | 207 |
| 8 | 415 |
| 9 | 829 |
| 10 | 1657 |
| 11 | 3313 |
| 12 | 6627 |
| 13 | 13255 |
| 14 | 26509 |
| 15 | 53019 |
| 16 | 106039 |
| 17 | 212079 |
| 18 | 424157 |
| 19 | 848315 |
| 20 | 1696631 |
| 21 | 3393263 |
| 22 | 6786527 |
| 23 | 13573053 |
| 24 | 27146105 |
| 25 | 54292211 |
| 26 | 108584423 |
| 27 | 217168845 |
| 28 | 434337691 |
| 29 | 868675383 |
| 30 | 1737350767 |
| 31 | 3474701533 |
| 32 | 6949403065 |
| 33 | 13898806131 |
| 34 | 27797612261 |
| 35 | 55595224523 |
[1,3,7,13,25,51,103,207,415,829,1657,3313,6627, 13255,26509,53019,106039,212079,424157,848315, 1696631,3393263,6786527,13573053,27146105, 54292211,108584423,217168845,434337691,868675383, 1737350767,3474701533,6949403065,13898806131, 27797612261,55595224523] |