| n | a(n) |
|---|---|
| 1 | 21 |
| 2 | 231 |
| 3 | 671 |
| 4 | 703 |
| 5 | 841 |
| 6 | 1281 |
| 7 | 1387 |
| 8 | 1417 |
| 9 | 2701 |
| 10 | 3829 |
| 11 | 8321 |
| 12 | 8911 |
| 13 | 10933 |
| 14 | 13019 |
| 15 | 14091 |
| 16 | 20591 |
| 17 | 21667 |
| 18 | 25909 |
| 19 | 43213 |
| 20 | 43273 |
| 21 | 45221 |
| 22 | 45449 |
| 23 | 47197 |
| 24 | 48133 |
| 25 | 51319 |
| 26 | 60551 |
| 27 | 74089 |
| 28 | 76861 |
| 29 | 79381 |
| 30 | 80137 |
| 31 | 84941 |
| 32 | 86331 |
| 33 | 91669 |
| 34 | 106491 |
| 35 | 109981 |
| 36 | 110293 |
| 37 | 111361 |
| 38 | 113401 |
[21,231,671,703,841,1281,1387,1417,2701,3829,8321, 8911,10933,13019,14091,20591,21667,25909,43213, 43273,45221,45449,47197,48133,51319,60551,74089, 76861,79381,80137,84941,86331,91669,106491,109981, 110293,111361,113401] |