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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 6 |
| 5 | 9 |
| 6 | 10 |
| 7 | 13 |
| 8 | 14 |
| 9 | 15 |
| 10 | 18 |
| 11 | 30 |
| 12 | 32 |
| 13 | 54 |
| 14 | 58 |
| 15 | 59 |
| 16 | 81 |
| 17 | 85 |
| 18 | 128 |
| 19 | 140 |
| 20 | 203 |
| 21 | 204 |
| 22 | 206 |
| 23 | 209 |
| 24 | 223 |
| 25 | 286 |
| 26 | 305 |
| 27 | 343 |
| 28 | 350 |
| 29 | 367 |
| 30 | 397 |
| 31 | 399 |
| 32 | 451 |
| 33 | 453 |
| 34 | 506 |
| 35 | 534 |
| 36 | 656 |
| 37 | 676 |
| 38 | 698 |
| 39 | 730 |
| 40 | 756 |
| 41 | 845 |
| 42 | 849 |
| 43 | 878 |
| 44 | 944 |
| 45 | 1020 |
| 46 | 1040 |
| 47 | 1091 |
| 48 | 1248 |
| 49 | 1256 |
| 50 | 1300 |
| 51 | 1310 |
| 52 | 1326 |
| 53 | 1364 |
| 54 | 1406 |
| 55 | 1535 |
[2,3,4,6,9,10,13,14,15,18,30,32,54,58,59,81,85, 128,140,203,204,206,209,223,286,305,343,350,367, 397,399,451,453,506,534,656,676,698,730,756,845, 849,878,944,1020,1040,1091,1248,1256,1300,1310, 1326,1364,1406,1535] |