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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 7 |
| 2 | 17 |
| 3 | 33 |
| 4 | 57 |
| 5 | 93 |
| 6 | 149 |
| 7 | 241 |
| 8 | 401 |
| 9 | 693 |
| 10 | 1245 |
| 11 | 2313 |
| 12 | 4409 |
| 13 | 8557 |
| 14 | 16805 |
| 15 | 33249 |
| 16 | 66081 |
| 17 | 131685 |
| 18 | 262829 |
| 19 | 525049 |
| 20 | 1049417 |
| 21 | 2098077 |
| 22 | 4195317 |
| 23 | 8389713 |
| 24 | 16778417 |
| 25 | 33555733 |
| 26 | 67110269 |
| 27 | 134219241 |
| 28 | 268437081 |
| 29 | 536872653 |
| 30 | 1073743685 |
| 31 | 2147485633 |
| 32 | 4294969409 |
| 33 | 8589936837 |
[2,7,17,33,57,93,149,241,401,693,1245,2313,4409, 8557,16805,33249,66081,131685,262829,525049, 1049417,2098077,4195317,8389713,16778417,33555733, 67110269,134219241,268437081,536872653,1073743685, 2147485633,4294969409,8589936837] |