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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 7 |
| 5 | 12 |
| 6 | 17 |
| 7 | 21 |
| 8 | 38 |
| 9 | 88 |
| 10 | 106 |
| 11 | 107 |
| 12 | 108 |
| 13 | 109 |
| 14 | 117 |
| 15 | 122 |
| 16 | 128 |
| 17 | 129 |
| 18 | 141 |
| 19 | 146 |
| 20 | 164 |
| 21 | 168 |
| 22 | 171 |
| 23 | 173 |
| 24 | 178 |
| 25 | 191 |
| 26 | 196 |
| 27 | 204 |
| 28 | 206 |
| 29 | 207 |
| 30 | 208 |
| 31 | 209 |
| 32 | 212 |
| 33 | 221 |
| 34 | 222 |
| 35 | 236 |
| 36 | 263 |
| 37 | 276 |
| 38 | 278 |
| 39 | 288 |
| 40 | 306 |
| 41 | 342 |
| 42 | 359 |
| 43 | 364 |
| 44 | 367 |
| 45 | 372 |
| 46 | 377 |
| 47 | 394 |
| 48 | 432 |
| 49 | 463 |
| 50 | 478 |
| 51 | 479 |
| 52 | 518 |
| 53 | 537 |
| 54 | 538 |
[1,2,3,7,12,17,21,38,88,106,107,108,109,117,122, 128,129,141,146,164,168,171,173,178,191,196,204, 206,207,208,209,212,221,222,236,263,276,278,288, 306,342,359,364,367,372,377,394,432,463,478,479, 518,537,538] |