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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 9 |
| 6 | 18 |
| 7 | 19 |
| 8 | 38 |
| 9 | 39 |
| 10 | 40 |
| 11 | 41 |
| 12 | 82 |
| 13 | 83 |
| 14 | 166 |
| 15 | 167 |
| 16 | 168 |
| 17 | 169 |
| 18 | 338 |
| 19 | 339 |
| 20 | 678 |
| 21 | 679 |
| 22 | 680 |
| 23 | 681 |
| 24 | 1362 |
| 25 | 1363 |
| 26 | 1364 |
| 27 | 1365 |
| 28 | 1366 |
| 29 | 1367 |
| 30 | 2734 |
| 31 | 2735 |
| 32 | 5470 |
| 33 | 5471 |
| 34 | 5472 |
| 35 | 5473 |
| 36 | 5474 |
| 37 | 5475 |
| 38 | 10950 |
| 39 | 10951 |
| 40 | 10952 |
| 41 | 10953 |
| 42 | 21906 |
| 43 | 21907 |
| 44 | 43814 |
| 45 | 43815 |
| 46 | 43816 |
| 47 | 43817 |
| 48 | 87634 |
[0,1,2,4,8,9,18,19,38,39,40,41,82,83,166,167,168, 169,338,339,678,679,680,681,1362,1363,1364,1365, 1366,1367,2734,2735,5470,5471,5472,5473,5474,5475, 10950,10951,10952,10953,21906,21907,43814,43815, 43816,43817,87634] |