The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 13 |
| 5 | 23 |
| 6 | 24 |
| 7 | 133 |
| 8 | 134 |
| 9 | 144 |
| 10 | 145 |
| 11 | 254 |
| 12 | 255 |
| 13 | 265 |
| 14 | 266 |
| 15 | 1464 |
| 16 | 1465 |
| 17 | 1475 |
| 18 | 1476 |
| 19 | 1585 |
| 20 | 1586 |
| 21 | 1596 |
| 22 | 1597 |
| 23 | 2795 |
| 24 | 2796 |
| 25 | 2806 |
| 26 | 2807 |
| 27 | 2916 |
| 28 | 2917 |
| 29 | 2927 |
| 30 | 2928 |
| 31 | 16105 |
| 32 | 16106 |
| 33 | 16116 |
| 34 | 16117 |
| 35 | 16226 |
| 36 | 16227 |
| 37 | 16237 |
| 38 | 16238 |
| 39 | 17436 |
| 40 | 17437 |
[1,2,12,13,23,24,133,134,144,145,254,255,265,266, 1464,1465,1475,1476,1585,1586,1596,1597,2795,2796, 2806,2807,2916,2917,2927,2928,16105,16106,16116, 16117,16226,16227,16237,16238,17436,17437] |