| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 16 |
| 5 | 18 |
| 6 | 40 |
| 7 | 42 |
| 8 | 52 |
| 9 | 54 |
| 10 | 78 |
| 11 | 100 |
| 12 | 102 |
| 13 | 104 |
| 14 | 106 |
| 15 | 126 |
| 16 | 160 |
| 17 | 162 |
| 18 | 220 |
| 19 | 222 |
| 20 | 342 |
| 21 | 378 |
| 22 | 438 |
| 23 | 460 |
| 24 | 462 |
| 25 | 498 |
| 26 | 500 |
| 27 | 502 |
| 28 | 856 |
| 29 | 858 |
| 30 | 880 |
| 31 | 882 |
| 32 | 1086 |
| 33 | 1276 |
| 34 | 1278 |
| 35 | 1300 |
| 36 | 1422 |
| 37 | 1480 |
| 38 | 1482 |
| 39 | 1566 |
| 40 | 1660 |
| 41 | 1662 |
| 42 | 1804 |
| 43 | 1806 |
| 44 | 1996 |
| 45 | 2058 |
| 46 | 2200 |
| 47 | 2202 |
| 48 | 2236 |
| 49 | 2238 |
| 50 | 3016 |
| 51 | 3018 |
[2,4,6,16,18,40,42,52,54,78,100,102,104,106,126, 160,162,220,222,342,378,438,460,462,498,500,502, 856,858,880,882,1086,1276,1278,1300,1422,1480, 1482,1566,1660,1662,1804,1806,1996,2058,2200,2202, 2236,2238,3016,3018] |