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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 8 |
| 5 | 10 |
| 6 | 12 |
| 7 | 14 |
| 8 | 16 |
| 9 | 18 |
| 10 | 20 |
| 11 | 22 |
| 12 | 24 |
| 13 | 26 |
| 14 | 28 |
| 15 | 110 |
| 16 | 112 |
| 17 | 114 |
| 18 | 116 |
| 19 | 118 |
| 20 | 40 |
| 21 | 42 |
| 22 | 44 |
| 23 | 46 |
| 24 | 48 |
| 25 | 210 |
| 26 | 212 |
| 27 | 214 |
| 28 | 216 |
| 29 | 218 |
| 30 | 60 |
| 31 | 62 |
| 32 | 64 |
| 33 | 66 |
| 34 | 68 |
| 35 | 310 |
| 36 | 312 |
| 37 | 314 |
| 38 | 316 |
| 39 | 318 |
| 40 | 80 |
| 41 | 82 |
| 42 | 84 |
| 43 | 86 |
| 44 | 88 |
| 45 | 410 |
| 46 | 412 |
| 47 | 414 |
| 48 | 416 |
| 49 | 418 |
| 50 | 100 |
| 51 | 102 |
| 52 | 104 |
| 53 | 106 |
| 54 | 108 |
| 55 | 510 |
| 56 | 512 |
| 57 | 514 |
| 58 | 516 |
| 59 | 518 |
[2,4,6,8,10,12,14,16,18,20,22,24,26,28,110,112, 114,116,118,40,42,44,46,48,210,212,214,216,218,60, 62,64,66,68,310,312,314,316,318,80,82,84,86,88, 410,412,414,416,418,100,102,104,106,108,510,512, 514,516,518] |