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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 6 |
| 6 | 9 |
| 7 | 99 |
| 8 | 153 |
| 9 | 189 |
| 10 | 238 |
| 11 | 252 |
| 12 | 323 |
| 13 | 444 |
| 14 | 539 |
| 15 | 927 |
| 16 | 3099 |
| 17 | 3753 |
| 18 | 4224 |
| 19 | 5451 |
| 20 | 8967 |
| 21 | 44544 |
| 22 | 53673 |
| 23 | 97119 |
| 24 | 1423719 |
| 25 | 3860793 |
| 26 | 4773591 |
[1,2,3,5,6,9,99,153,189,238,252,323,444,539,927, 3099,3753,4224,5451,8967,44544,53673,97119, 1423719,3860793,4773591] |