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| n | a(n) |
|---|---|
| 0 | 4 |
| 1 | 45 |
| 2 | 465 |
| 3 | 4676 |
| 4 | 46548 |
| 5 | 462462 |
| 6 | 4598113 |
| 7 | 45549645 |
| 8 | 459768842 |
| 9 | 4542783435 |
| 10 | 45319909593 |
| 11 | 454084412972 |
[4,45,465,4676,46548,462462,4598113,45549645, 459768842,4542783435,45319909593,454084412972] |