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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 13 |
| 4 | 30 |
| 5 | 73 |
| 6 | 82 |
| 7 | 120 |
| 8 | 168 |
| 9 | 227 |
| 10 | 422 |
| 11 | 433 |
| 12 | 451 |
| 13 | 607 |
| 14 | 612 |
| 15 | 798 |
| 16 | 1527 |
| 17 | 6958 |
[2,4,13,30,73,82,120,168,227,422,433,451,607,612, 798,1527,6958] |