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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 9 |
| 3 | 33 |
| 4 | 129 |
| 5 | 513 |
| 6 | 1175 |
| 7 | 2049 |
| 8 | 4617 |
| 9 | 8193 |
| 10 | 18441 |
| 11 | 18807 |
| 12 | 32769 |
| 13 | 73737 |
| 14 | 131073 |
| 15 | 264321 |
| 16 | 270369 |
| 17 | 294921 |
| 18 | 524289 |
| 19 | 545431 |
| 20 | 1081377 |
| 21 | 1179657 |
| 22 | 2097153 |
| 23 | 4203009 |
| 24 | 4325409 |
| 25 | 4718601 |
| 26 | 8388609 |
| 27 | 16810497 |
| 28 | 16908417 |
| 29 | 17301537 |
| 30 | 18874377 |
| 31 | 33554433 |
| 32 | 38729961 |
| 33 | 67143681 |
| 34 | 67633281 |
| 35 | 69206049 |
[1,9,33,129,513,1175,2049,4617,8193,18441,18807, 32769,73737,131073,264321,270369,294921,524289, 545431,1081377,1179657,2097153,4203009,4325409, 4718601,8388609,16810497,16908417,17301537, 18874377,33554433,38729961,67143681,67633281, 69206049] |