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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 4 |
| 2 | 6 |
| 3 | 8 |
| 4 | 10 |
| 5 | 22 |
| 6 | 30 |
| 7 | 42 |
| 8 | 50 |
| 9 | 62 |
| 10 | 70 |
| 11 | 82 |
| 12 | 90 |
| 13 | 112 |
| 14 | 300 |
| 15 | 412 |
| 16 | 500 |
| 17 | 612 |
| 18 | 700 |
| 19 | 812 |
| 20 | 900 |
| 21 | 1112 |
| 22 | 3000 |
| 23 | 4112 |
| 24 | 5000 |
| 25 | 6112 |
| 26 | 7000 |
| 27 | 8112 |
| 28 | 9000 |
| 29 | 11112 |
| 30 | 30000 |
| 31 | 41112 |
| 32 | 50000 |
| 33 | 61112 |
| 34 | 70000 |
| 35 | 81112 |
| 36 | 90000 |
| 37 | 111112 |
| 38 | 300000 |
| 39 | 411112 |
| 40 | 500000 |
| 41 | 611112 |
| 42 | 700000 |
| 43 | 811112 |
[2,4,6,8,10,22,30,42,50,62,70,82,90,112,300,412, 500,612,700,812,900,1112,3000,4112,5000,6112,7000, 8112,9000,11112,30000,41112,50000,61112,70000, 81112,90000,111112,300000,411112,500000,611112, 700000,811112] |