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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 11 |
| 4 | 51 |
| 5 | 76 |
| 6 | 123 |
| 7 | 149 |
| 8 | 274 |
| 9 | 311 |
| 10 | 328 |
| 11 | 381 |
| 12 | 639 |
| 13 | 737 |
| 14 | 898 |
| 15 | 1156 |
| 16 | 9017 |
| 17 | 13200 |
| 18 | 18348 |
| 19 | 26388 |
| 20 | 30081 |
[1,3,11,51,76,123,149,274,311,328,381,639,737,898, 1156,9017,13200,18348,26388,30081] |