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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 9 |
| 4 | 19 |
| 5 | 20 |
| 6 | 23 |
| 7 | 52 |
| 8 | 53 |
| 9 | 97 |
| 10 | 142 |
| 11 | 534 |
| 12 | 944 |
| 13 | 950 |
| 14 | 3806 |
| 15 | 4782 |
[1,5,9,19,20,23,52,53,97,142,534,944,950,3806, 4782] |