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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 21 |
| 3 | 33 |
| 4 | 49 |
| 5 | 57 |
| 6 | 69 |
| 7 | 77 |
| 8 | 93 |
| 9 | 121 |
| 10 | 129 |
| 11 | 133 |
| 12 | 141 |
| 13 | 161 |
| 14 | 177 |
| 15 | 201 |
| 16 | 209 |
| 17 | 213 |
| 18 | 217 |
| 19 | 237 |
| 20 | 249 |
| 21 | 253 |
| 22 | 301 |
| 23 | 309 |
| 24 | 321 |
| 25 | 329 |
| 26 | 341 |
| 27 | 361 |
| 28 | 381 |
| 29 | 393 |
| 30 | 413 |
| 31 | 417 |
| 32 | 437 |
| 33 | 453 |
| 34 | 469 |
| 35 | 473 |
| 36 | 489 |
| 37 | 497 |
| 38 | 501 |
| 39 | 517 |
| 40 | 529 |
| 41 | 537 |
| 42 | 553 |
| 43 | 573 |
| 44 | 581 |
| 45 | 589 |
| 46 | 597 |
| 47 | 633 |
| 48 | 649 |
| 49 | 669 |
| 50 | 681 |
| 51 | 713 |
| 52 | 717 |
| 53 | 721 |
| 54 | 737 |
[9,21,33,49,57,69,77,93,121,129,133,141,161,177, 201,209,213,217,237,249,253,301,309,321,329,341, 361,381,393,413,417,437,453,469,473,489,497,501, 517,529,537,553,573,581,589,597,633,649,669,681, 713,717,721,737] |