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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 24 |
| 4 | 25 |
| 5 | 26 |
| 6 | 65 |
| 7 | 74 |
| 8 | 75 |
| 9 | 76 |
| 10 | 275 |
| 11 | 474 |
| 12 | 475 |
| 13 | 476 |
| 14 | 524 |
| 15 | 525 |
| 16 | 526 |
| 17 | 665 |
| 18 | 674 |
| 19 | 675 |
| 20 | 725 |
| 21 | 2574 |
| 22 | 2725 |
| 23 | 2765 |
| 24 | 4762 |
| 25 | 6524 |
| 26 | 6525 |
| 27 | 6665 |
| 28 | 6674 |
| 29 | 6675 |
| 30 | 6725 |
| 31 | 6742 |
| 32 | 6762 |
| 33 | 6765 |
| 34 | 7242 |
| 35 | 7465 |
| 36 | 7525 |
| 37 | 27525 |
| 38 | 47725 |
| 39 | 52465 |
| 40 | 52675 |
| 41 | 66524 |
| 42 | 66525 |
| 43 | 66665 |
| 44 | 66674 |
| 45 | 66675 |
| 46 | 66725 |
| 47 | 66765 |
| 48 | 67426 |
| 49 | 67574 |
| 50 | 72426 |
| 51 | 72475 |
| 52 | 72576 |
| 53 | 74475 |
| 54 | 74476 |
| 55 | 75674 |
| 56 | 254275 |
| 57 | 254475 |
| 58 | 255475 |
| 59 | 256266 |
[2,5,24,25,26,65,74,75,76,275,474,475,476,524,525, 526,665,674,675,725,2574,2725,2765,4762,6524,6525, 6665,6674,6675,6725,6742,6762,6765,7242,7465,7525, 27525,47725,52465,52675,66524,66525,66665,66674, 66675,66725,66765,67426,67574,72426,72475,72576, 74475,74476,75674,254275,254475,255475,256266] |