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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 6 |
| 3 | 9 |
| 4 | 10 |
| 5 | 14 |
| 6 | 15 |
| 7 | 21 |
| 8 | 25 |
| 9 | 35 |
| 10 | 49 |
| 11 | 121 |
| 12 | 143 |
| 13 | 169 |
| 14 | 187 |
| 15 | 209 |
| 16 | 221 |
| 17 | 247 |
| 18 | 253 |
| 19 | 289 |
| 20 | 299 |
| 21 | 319 |
| 22 | 323 |
| 23 | 341 |
| 24 | 361 |
| 25 | 377 |
| 26 | 391 |
| 27 | 403 |
| 28 | 407 |
| 29 | 437 |
| 30 | 451 |
| 31 | 473 |
| 32 | 481 |
| 33 | 493 |
| 34 | 517 |
| 35 | 527 |
| 36 | 529 |
| 37 | 533 |
| 38 | 551 |
| 39 | 559 |
| 40 | 583 |
| 41 | 589 |
| 42 | 611 |
| 43 | 629 |
| 44 | 649 |
| 45 | 667 |
| 46 | 671 |
| 47 | 689 |
| 48 | 697 |
| 49 | 703 |
| 50 | 713 |
| 51 | 731 |
| 52 | 737 |
| 53 | 767 |
| 54 | 779 |
| 55 | 781 |
[4,6,9,10,14,15,21,25,35,49,121,143,169,187,209, 221,247,253,289,299,319,323,341,361,377,391,403, 407,437,451,473,481,493,517,527,529,533,551,559, 583,589,611,629,649,667,671,689,697,703,713,731, 737,767,779,781] |