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| n | a(n) |
|---|---|
| 1 | 21 |
| 2 | 27 |
| 3 | 34 |
| 4 | 54 |
| 5 | 63 |
| 6 | 68 |
| 7 | 78 |
| 8 | 81 |
| 9 | 106 |
| 10 | 108 |
| 11 | 115 |
| 12 | 117 |
| 13 | 126 |
| 14 | 129 |
| 15 | 135 |
| 16 | 136 |
| 17 | 142 |
| 18 | 147 |
| 19 | 156 |
| 20 | 162 |
| 21 | 171 |
| 22 | 178 |
| 23 | 183 |
| 24 | 186 |
| 25 | 187 |
| 26 | 189 |
| 27 | 195 |
| 28 | 205 |
| 29 | 210 |
| 30 | 212 |
| 31 | 214 |
| 32 | 216 |
| 33 | 234 |
| 34 | 237 |
| 35 | 243 |
| 36 | 252 |
| 37 | 270 |
| 38 | 272 |
| 39 | 279 |
| 40 | 284 |
| 41 | 291 |
| 42 | 295 |
| 43 | 297 |
| 44 | 312 |
| 45 | 315 |
| 46 | 324 |
| 47 | 333 |
| 48 | 342 |
| 49 | 351 |
| 50 | 356 |
| 51 | 358 |
| 52 | 372 |
| 53 | 378 |
[21,27,34,54,63,68,78,81,106,108,115,117,126,129, 135,136,142,147,156,162,171,178,183,186,187,189, 195,205,210,212,214,216,234,237,243,252,270,272, 279,284,291,295,297,312,315,324,333,342,351,356, 358,372,378] |