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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 8 |
| 5 | 55 |
| 6 | 66 |
| 7 | 77 |
| 8 | 88 |
| 9 | 99 |
| 10 | 22 |
| 11 | 44 |
| 12 | 363 |
| 13 | 484 |
| 14 | 5005 |
| 15 | 858 |
| 16 | 616 |
| 17 | 2112 |
| 18 | 1881 |
| 19 | 202 |
| 20 | 222 |
| 21 | 242 |
| 22 | 262 |
| 23 | 282 |
| 24 | 1661 |
| 25 | 1771 |
| 26 | 17271 |
| 27 | 1991 |
| 28 | 19291 |
| 29 | 404 |
| 30 | 424 |
| 31 | 444 |
| 32 | 464 |
| 33 | 2662 |
| 34 | 2772 |
| 35 | 2882 |
| 36 | 2992 |
| 37 | 27072 |
| 38 | 29492 |
| 39 | 606 |
| 40 | 626 |
| 41 | 646 |
| 42 | 666 |
| 43 | 686 |
| 44 | 3883 |
| 45 | 3993 |
| 46 | 37673 |
| 47 | 38683 |
| 48 | 14541 |
| 49 | 808 |
[2,4,6,8,55,66,77,88,99,22,44,363,484,5005,858, 616,2112,1881,202,222,242,262,282,1661,1771,17271, 1991,19291,404,424,444,464,2662,2772,2882,2992, 27072,29492,606,626,646,666,686,3883,3993,37673, 38683,14541,808] |