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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 9 |
| 4 | 17 |
| 5 | 27 |
| 6 | 31 |
| 7 | 51 |
| 8 | 59 |
| 9 | 73 |
| 10 | 81 |
| 11 | 93 |
| 12 | 101 |
| 13 | 153 |
| 14 | 157 |
| 15 | 177 |
| 16 | 199 |
| 17 | 219 |
| 18 | 227 |
| 19 | 241 |
| 20 | 243 |
| 21 | 269 |
| 22 | 279 |
| 23 | 283 |
| 24 | 289 |
| 25 | 303 |
| 26 | 311 |
| 27 | 353 |
| 28 | 367 |
| 29 | 409 |
| 30 | 459 |
| 31 | 471 |
| 32 | 479 |
| 33 | 521 |
| 34 | 527 |
| 35 | 531 |
| 36 | 563 |
| 37 | 577 |
| 38 | 597 |
| 39 | 619 |
| 40 | 647 |
| 41 | 657 |
| 42 | 661 |
| 43 | 681 |
| 44 | 723 |
| 45 | 729 |
| 46 | 773 |
| 47 | 787 |
| 48 | 807 |
| 49 | 829 |
| 50 | 837 |
| 51 | 849 |
| 52 | 857 |
| 53 | 867 |
| 54 | 909 |
| 55 | 933 |
[1,3,9,17,27,31,51,59,73,81,93,101,153,157,177, 199,219,227,241,243,269,279,283,289,303,311,353, 367,409,459,471,479,521,527,531,563,577,597,619, 647,657,661,681,723,729,773,787,807,829,837,849, 857,867,909,933] |