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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 5 |
| 3 | 20 |
| 4 | 92 |
| 5 | 106 |
| 6 | 266 |
| 7 | 308 |
| 8 | 343 |
| 9 | 583 |
| 10 | 597 |
| 11 | 903 |
| 12 | 1021 |
| 13 | 1239 |
| 14 | 1314 |
| 15 | 2458 |
| 16 | 6160 |
| 17 | 9627 |
| 18 | 10649 |
[4,5,20,92,106,266,308,343,583,597,903,1021,1239, 1314,2458,6160,9627,10649] |