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| n | a(n) |
|---|---|
| 1 | 23357 |
| 2 | 23557 |
| 3 | 2235557 |
| 4 | 2335577 |
| 5 | 2355557 |
| 6 | 22222222357 |
| 7 | 22222333577 |
| 8 | 22223333357 |
| 9 | 22223335577 |
| 10 | 22223335777 |
| 11 | 22223357777 |
| 12 | 22233577777 |
| 13 | 22333355777 |
| 14 | 22335555577 |
| 15 | 22355555557 |
| 16 | 22355555777 |
| 17 | 23333335577 |
[23357,23557,2235557,2335577,2355557,22222222357, 22222333577,22223333357,22223335577,22223335777, 22223357777,22233577777,22333355777,22335555577, 22355555557,22355555777,23333335577] |