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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 9 |
| 3 | 21 |
| 4 | 27 |
| 5 | 71 |
| 6 | 81 |
| 7 | 195 |
| 8 | 233 |
| 9 | 243 |
| 10 | 711 |
| 11 | 729 |
| 12 | 1583 |
| 13 | 1749 |
| 14 | 2157 |
| 15 | 2187 |
| 16 | 6561 |
| 17 | 14829 |
| 18 | 15747 |
| 19 | 19629 |
| 20 | 19683 |
| 21 | 57609 |
| 22 | 59049 |
| 23 | 141717 |
| 24 | 154727 |
| 25 | 175537 |
| 26 | 177147 |
| 27 | 385559 |
| 28 | 394471 |
| 29 | 414649 |
| 30 | 422729 |
| 31 | 446489 |
| 32 | 462601 |
| 33 | 468919 |
| 34 | 482759 |
| 35 | 488431 |
| 36 | 504161 |
| 37 | 515649 |
| 38 | 524559 |
| 39 | 529599 |
| 40 | 530529 |
[3,9,21,27,71,81,195,233,243,711,729,1583,1749, 2157,2187,6561,14829,15747,19629,19683,57609, 59049,141717,154727,175537,177147,385559,394471, 414649,422729,446489,462601,468919,482759,488431, 504161,515649,524559,529599,530529] |