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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 9 |
| 3 | 21 |
| 4 | 45 |
| 5 | 63 |
| 6 | 69 |
| 7 | 81 |
| 8 | 93 |
| 9 | 123 |
| 10 | 135 |
| 11 | 141 |
| 12 | 153 |
| 13 | 165 |
| 14 | 201 |
| 15 | 219 |
| 16 | 231 |
| 17 | 243 |
| 18 | 267 |
| 19 | 273 |
| 20 | 279 |
| 21 | 309 |
| 22 | 327 |
| 23 | 381 |
| 24 | 471 |
| 25 | 477 |
| 26 | 513 |
| 27 | 525 |
| 28 | 531 |
| 29 | 543 |
| 30 | 555 |
| 31 | 561 |
| 32 | 579 |
| 33 | 585 |
| 34 | 591 |
| 35 | 603 |
| 36 | 621 |
| 37 | 645 |
| 38 | 657 |
| 39 | 669 |
| 40 | 687 |
| 41 | 693 |
| 42 | 717 |
| 43 | 723 |
| 44 | 741 |
| 45 | 759 |
| 46 | 765 |
| 47 | 801 |
| 48 | 825 |
| 49 | 861 |
| 50 | 873 |
| 51 | 879 |
| 52 | 903 |
| 53 | 915 |
| 54 | 933 |
[3,9,21,45,63,69,81,93,123,135,141,153,165,201, 219,231,243,267,273,279,309,327,381,471,477,513, 525,531,543,555,561,579,585,591,603,621,645,657, 669,687,693,717,723,741,759,765,801,825,861,873, 879,903,915,933] |