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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 13 |
| 5 | 17 |
| 6 | 61 |
| 7 | 65 |
| 8 | 213 |
| 9 | 329 |
| 10 | 885 |
| 11 | 1025 |
| 12 | 3933 |
| 13 | 4097 |
| 14 | 13781 |
| 15 | 22121 |
| 16 | 54613 |
| 17 | 65537 |
| 18 | 251741 |
| 19 | 262145 |
| 20 | 906613 |
| 21 | 1364681 |
| 22 | 3497301 |
| 23 | 4194305 |
| 24 | 16111453 |
| 25 | 17859617 |
| 26 | 55932245 |
| 27 | 86282825 |
| 28 | 225793493 |
| 29 | 268435457 |
| 30 | 1064687485 |
| 31 | 1073741825 |
| 32 | 3579139413 |
| 33 | 5526297161 |
| 34 | 14316688725 |
[1,3,5,13,17,61,65,213,329,885,1025,3933,4097, 13781,22121,54613,65537,251741,262145,906613, 1364681,3497301,4194305,16111453,17859617, 55932245,86282825,225793493,268435457,1064687485, 1073741825,3579139413,5526297161,14316688725] |