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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 14 |
| 3 | 33 |
| 4 | 34 |
| 5 | 61 |
| 6 | 62 |
| 7 | 97 |
| 8 | 98 |
| 9 | 103 |
| 10 | 141 |
| 11 | 142 |
| 12 | 193 |
| 13 | 194 |
| 14 | 253 |
| 15 | 254 |
| 16 | 321 |
| 17 | 322 |
| 18 | 397 |
| 19 | 398 |
| 20 | 481 |
| 21 | 482 |
| 22 | 573 |
| 23 | 574 |
| 24 | 673 |
| 25 | 674 |
| 26 | 713 |
| 27 | 781 |
| 28 | 782 |
| 29 | 897 |
| 30 | 898 |
| 31 | 1021 |
| 32 | 1022 |
| 33 | 1153 |
| 34 | 1154 |
| 35 | 1293 |
| 36 | 1294 |
| 37 | 1441 |
| 38 | 1442 |
| 39 | 1597 |
| 40 | 1598 |
| 41 | 1761 |
| 42 | 1762 |
| 43 | 1933 |
| 44 | 1934 |
| 45 | 2113 |
| 46 | 2114 |
| 47 | 2301 |
| 48 | 2302 |
| 49 | 2497 |
| 50 | 2498 |
| 51 | 2701 |
| 52 | 2702 |
| 53 | 2913 |
| 54 | 2914 |
| 55 | 3133 |
| 56 | 3134 |
[13,14,33,34,61,62,97,98,103,141,142,193,194,253, 254,321,322,397,398,481,482,573,574,673,674,713, 781,782,897,898,1021,1022,1153,1154,1293,1294, 1441,1442,1597,1598,1761,1762,1933,1934,2113,2114, 2301,2302,2497,2498,2701,2702,2913,2914,3133,3134] |