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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 4 |
| 3 | 18 |
| 4 | 26 |
| 5 | 57 |
| 6 | 70 |
| 7 | 137 |
| 8 | 157 |
| 9 | 282 |
| 10 | 326 |
| 11 | 562 |
| 12 | 628 |
| 13 | 1056 |
| 14 | 1188 |
| 15 | 1969 |
| 16 | 2170 |
| 17 | 3564 |
| 18 | 3854 |
| 19 | 6294 |
| 20 | 6862 |
| 21 | 11166 |
| 22 | 12017 |
| 23 | 19514 |
| 24 | 20706 |
| 25 | 33580 |
| 26 | 35867 |
| 27 | 58116 |
| 28 | 61383 |
| 29 | 99407 |
| 30 | 105761 |
| 31 | 171219 |
| 32 | 180718 |
| 33 | 292509 |
| 34 | 305831 |
| 35 | 494951 |
| 36 | 520487 |
| 37 | 842277 |
| 38 | 878885 |
| 39 | 1422184 |
| 40 | 1493555 |
| 41 | 2416747 |
[3,4,18,26,57,70,137,157,282,326,562,628,1056, 1188,1969,2170,3564,3854,6294,6862,11166,12017, 19514,20706,33580,35867,58116,61383,99407,105761, 171219,180718,292509,305831,494951,520487,842277, 878885,1422184,1493555,2416747] |