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| n | a(n) |
|---|---|
| 1 | 51 |
| 2 | 52 |
| 3 | 53 |
| 4 | 54 |
| 5 | 56 |
| 6 | 57 |
| 7 | 58 |
| 8 | 59 |
| 9 | 551 |
| 10 | 553 |
| 11 | 557 |
| 12 | 559 |
| 13 | 5051 |
| 14 | 5053 |
| 15 | 5057 |
| 16 | 5059 |
| 17 | 5501 |
| 18 | 5503 |
| 19 | 5507 |
| 20 | 5509 |
| 21 | 50051 |
| 22 | 50053 |
| 23 | 50057 |
| 24 | 50059 |
| 25 | 55001 |
| 26 | 55003 |
| 27 | 55007 |
| 28 | 55009 |
| 29 | 55551 |
| 30 | 55553 |
| 31 | 55557 |
| 32 | 55559 |
| 33 | 500501 |
| 34 | 500503 |
| 35 | 500507 |
| 36 | 500509 |
| 37 | 505001 |
| 38 | 505003 |
[51,52,53,54,56,57,58,59,551,553,557,559,5051, 5053,5057,5059,5501,5503,5507,5509,50051,50053, 50057,50059,55001,55003,55007,55009,55551,55553, 55557,55559,500501,500503,500507,500509,505001, 505003] |