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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 9 |
| 4 | 11 |
| 5 | 33 |
| 6 | 35 |
| 7 | 41 |
| 8 | 43 |
| 9 | 129 |
| 10 | 131 |
| 11 | 137 |
| 12 | 139 |
| 13 | 161 |
| 14 | 163 |
| 15 | 169 |
| 16 | 171 |
| 17 | 513 |
| 18 | 515 |
| 19 | 521 |
| 20 | 523 |
| 21 | 545 |
| 22 | 547 |
| 23 | 553 |
| 24 | 555 |
| 25 | 641 |
| 26 | 643 |
| 27 | 649 |
| 28 | 651 |
| 29 | 673 |
| 30 | 675 |
| 31 | 681 |
| 32 | 683 |
| 33 | 2049 |
| 34 | 2051 |
| 35 | 2057 |
| 36 | 2059 |
| 37 | 2081 |
| 38 | 2083 |
| 39 | 2089 |
| 40 | 2091 |
| 41 | 2177 |
| 42 | 2179 |
| 43 | 2185 |
| 44 | 2187 |
| 45 | 2209 |
| 46 | 2211 |
| 47 | 2217 |
| 48 | 2219 |
| 49 | 2561 |
| 50 | 2563 |
[1,3,9,11,33,35,41,43,129,131,137,139,161,163,169, 171,513,515,521,523,545,547,553,555,641,643,649, 651,673,675,681,683,2049,2051,2057,2059,2081,2083, 2089,2091,2177,2179,2185,2187,2209,2211,2217,2219, 2561,2563] |